Finding the Fourth Proportional to 518,338.97, 715,343.68 and 314,398.49
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Solution
The fourth proportional to 518,338.97, 715,343.68 and 314,398.49 is: 433,891.69
Step by Step Solution
- Step 1: Write the proportion equation
518,338.97 : 715,343.68 = 314,398.49 : x - Step 2: Convert to fraction form
518,338.97/715,343.68 = 314,398.49/x - Step 3: Cross multiply
518,338.97x = 715,343.68 × 314,398.49 - Step 4: Simplify right side
518,338.97x = 224,902,970,766.98 - Step 5: Solve for x
x = 224,902,970,766.98/518,338.97 - Step 6: Final answer
x = 433,891.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.