 The equation ad = be gives a — -£, b = — ; so that an d с extreme may be found by dividing the product of the means by the other extreme ; and a mean may be found by dividing the product of the extremes by the other mean.  A College Algebra - Page 155by George Albert Wentworth - 1888 - 494 pagesFull view - About this book
 | Benjamin Greenleaf - Arithmetic - 1871 - 350 pages
...extremes compare with that of the means * 242. If the extremes and one of the means are given, the other mean may be found by dividing the product of the extremes by the given mean. Thus, if the extremes are 3 and 24, and the given mean 6, the other mean is 12 ; because... | |
 | Lewis Sergeant - 1873 - 182 pages
...given extreme. Similarly, if the two extremes of a proportion are known, and one mean, the remaining mean may be found by dividing the product of the extremes by the given mean. 44. It is manifest that the two means of a proportion may be interchanged without affecting... | |
 | George Augustus Walton - 1876 - 358 pages
...found by dividing the product of the means by the given extreme ; and whenever a mean is wanting, it may be found by dividing the product of the extremes by the given mean. Supply the terms wanting in the following proportions : — 1. 5 : 1 = 50 : ? 2. 8:? =... | |
 | Benjamin Greenleaf - Arithmetic - 1876 - 344 pages
...extremes compare with that of the means * 2J2i If the extremes and one of the means are given, the other mean may be found by dividing the product of the extremes by th» given mean. Thus, if the extremes are 3 and 24, and the given moan 6, the other mean is 12 ; because... | |
 | Stoddard A. Felter, Samuel Ashbel Farrand - Arithmetic - 1877 - 496 pages
...the second cause will be the same work ori. The required term is an element of the second cause, and may be found by dividing the product of the extremes by the product of the given means. PROBLEM. — If 82 men build <i wall 36 feet long, 8 feet high, and 4 feet... | |
 | Edwin Pliny Seaver, George Augustus Walton - Arithmetic - 1878 - 360 pages
...missing extreme may be found by dividing the product of the means by the given extreme. 3. A missing mean may be found by dividing the product of the extremes by the given mean. 646. Oral Exercises. Supply the missing terms represented by x in the following proportions... | |
 | George Albert Wentworth - Algebra - 1881 - 400 pages
...dividing by bd, 2_ = _£ od ba ac PS' 343. The equation ad = be gives be , ad a = -r I 0 = — ; ac so that an extreme may be found by dividing the product...dividing the product of the extremes by the other mean. 344. If four quantities, a, b, c, d, be in proportion, they will be in proportion by : I. Inversion.... | |
 | Silas Sadler Packard, Byron Horton - Business mathematics - 1882 - 224 pages
...PRINCIPLES. — 1. Tlie product of the means is equal to the product of the extremes. 2. A missing mean may be found by dividing the product of the extremes by the given mean. 3. A missing extreme may be found by dividing the product of the means by the given extreme.... | |
 | George Albert Wentworth - 1883 - 536 pages
...dividing by bd, 2- = -£-, od ba or 2-56 d' 343. The equation ad = be gives be , ad a = -j\ b = — ; d с so that an extreme may be found by dividing the...dividing the product of the extremes by the other mean. 344. If four quantities, a, b, c, d, be in proportion, they will be in proportion by : I. Inversion.... | |
 | George Albert Wentworth - Algebra - 1885 - 318 pages
...For, if ad = be, by dividing by H 2°о£, M 288. The equation ad = bo gives be . ad a=-, ; o = — ; a с so that an extreme may be found by dividing the...dividing the product of the extremes by the other mean. 289. If four quantities, a, b, c, d, be in proportion, they will be in proportion by : I. Inversion.... | |
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