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Finding the Fourth Proportional to 565,997.68, 781,005.90 and 382,635.28

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Solution

The fourth proportional to 565,997.68, 781,005.90 and 382,635.28 is: 527,988.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,997.68 : 781,005.90 = 382,635.28 : x
  2. Step 2: Convert to fraction form
    565,997.68/781,005.90 = 382,635.28/x
  3. Step 3: Cross multiply
    565,997.68x = 781,005.90 × 382,635.28
  4. Step 4: Simplify right side
    565,997.68x = 298,840,411,228.15
  5. Step 5: Solve for x
    x = 298,840,411,228.15/565,997.68
  6. Step 6: Final answer
    x = 527,988.76

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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.