Finding the Fourth Proportional to 512,654.77, 768,545.95 and 313,115.14
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Solution
The fourth proportional to 512,654.77, 768,545.95 and 313,115.14 is: 469,406.29
Step by Step Solution
- Step 1: Write the proportion equation
512,654.77 : 768,545.95 = 313,115.14 : x - Step 2: Convert to fraction form
512,654.77/768,545.95 = 313,115.14/x - Step 3: Cross multiply
512,654.77x = 768,545.95 × 313,115.14 - Step 4: Simplify right side
512,654.77x = 240,643,372,730.68 - Step 5: Solve for x
x = 240,643,372,730.68/512,654.77 - Step 6: Final answer
x = 469,406.29
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.