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Finding the Fourth Proportional to 518,487.92, 777,705.96 and 203,002.64

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Solution

The fourth proportional to 518,487.92, 777,705.96 and 203,002.64 is: 304,493.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,487.92 : 777,705.96 = 203,002.64 : x
  2. Step 2: Convert to fraction form
    518,487.92/777,705.96 = 203,002.64/x
  3. Step 3: Cross multiply
    518,487.92x = 777,705.96 × 203,002.64
  4. Step 4: Simplify right side
    518,487.92x = 157,876,363,023.73
  5. Step 5: Solve for x
    x = 157,876,363,023.73/518,487.92
  6. Step 6: Final answer
    x = 304,493.81

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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.