Finding the Fourth Proportional to 1,387,836.99, 1,915,743.56 and 904,519.71
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Solution
The fourth proportional to 1,387,836.99, 1,915,743.56 and 904,519.71 is: 1,248,581.65
Step by Step Solution
- Step 1: Write the proportion equation
1,387,836.99 : 1,915,743.56 = 904,519.71 : x - Step 2: Convert to fraction form
1,387,836.99/1,915,743.56 = 904,519.71/x - Step 3: Cross multiply
1,387,836.99x = 1,915,743.56 × 904,519.71 - Step 4: Simplify right side
1,387,836.99x = 1,732,827,804,802.97 - Step 5: Solve for x
x = 1,732,827,804,802.97/1,387,836.99 - Step 6: Final answer
x = 1,248,581.65
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.