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Finding the Fourth Proportional to 510,060.98, 703,855.96 and 283,691.90

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Solution

The fourth proportional to 510,060.98, 703,855.96 and 283,691.90 is: 391,479.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,060.98 : 703,855.96 = 283,691.90 : x
  2. Step 2: Convert to fraction form
    510,060.98/703,855.96 = 283,691.90/x
  3. Step 3: Cross multiply
    510,060.98x = 703,855.96 × 283,691.90
  4. Step 4: Simplify right side
    510,060.98x = 199,678,230,390.21
  5. Step 5: Solve for x
    x = 199,678,230,390.21/510,060.98
  6. Step 6: Final answer
    x = 391,479.14

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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.