Finding the Fourth Proportional to 527,115.18, 727,417.86 and 285,397.98
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Solution
The fourth proportional to 527,115.18, 727,417.86 and 285,397.98 is: 393,848.62
Step by Step Solution
- Step 1: Write the proportion equation
527,115.18 : 727,417.86 = 285,397.98 : x - Step 2: Convert to fraction form
527,115.18/727,417.86 = 285,397.98/x - Step 3: Cross multiply
527,115.18x = 727,417.86 × 285,397.98 - Step 4: Simplify right side
527,115.18x = 207,603,587,859.92 - Step 5: Solve for x
x = 207,603,587,859.92/527,115.18 - Step 6: Final answer
x = 393,848.62
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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.