For, if we have given ab' = a'b, then, dividing by bb', we obtain Corollary. The terms of a proportion may be written In any order which will make the product of the extremes equal to the product of the means. New Elementary Algebra - Page 116by B. Greenleaf - 1880Full view - About this book
| Perry Fairfax Nursey - Industrial arts - 1826 - 476 pages
...Rule vi. ought to have stood thus : — " A proportion tnây be converted into an equation by making the product of the extremes equal to the product of the means." This rule is moreover unintelligible to the learner, as the terms extremes and means have never been... | |
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...left to represent it. When found, the four terms above would be a. perfect geometrical proportion, and the product of the extremes equal to the product of the means. In this example, the product of the means is perfect; which product, divided by the factors in the... | |
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...either A, or r, or C. Hence, to convert a proportion into an equation, we have the following RULE. Place the product of the extremes equal to the product of the means. (Art. 42.) The relation between two quantities is not changed by multiplying or dividing both of them... | |
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...left to represent it. When found, the four terms above would be a perfect Geometrical proportion, and the product of the extremes equal to the product of the means. In this example, the product of the means is perfect j which product, divided by the factors in the... | |
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