Finding the Fourth Proportional to 715,246.14, 987,050.58 and 392,962.53
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Solution
The fourth proportional to 715,246.14, 987,050.58 and 392,962.53 is: 542,294.28
Step by Step Solution
- Step 1: Write the proportion equation
715,246.14 : 987,050.58 = 392,962.53 : x - Step 2: Convert to fraction form
715,246.14/987,050.58 = 392,962.53/x - Step 3: Cross multiply
715,246.14x = 987,050.58 × 392,962.53 - Step 4: Simplify right side
715,246.14x = 387,873,893,154.77 - Step 5: Solve for x
x = 387,873,893,154.77/715,246.14 - Step 6: Final answer
x = 542,294.28
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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.