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Finding the Fourth Proportional to 558,472.60, 836,720.70 and 539,972.20

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Solution

The fourth proportional to 558,472.60, 836,720.70 and 539,972.20 is: 809,002.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,472.60 : 836,720.70 = 539,972.20 : x
  2. Step 2: Convert to fraction form
    558,472.60/836,720.70 = 539,972.20/x
  3. Step 3: Cross multiply
    558,472.60x = 836,720.70 × 539,972.20
  4. Step 4: Simplify right side
    558,472.60x = 451,805,917,164.54
  5. Step 5: Solve for x
    x = 451,805,917,164.54/558,472.60
  6. Step 6: Final answer
    x = 809,002.84

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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.