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Finding the Fourth Proportional to 575,171.60, 862,757.40 and 542,512.40

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Solution

The fourth proportional to 575,171.60, 862,757.40 and 542,512.40 is: 813,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,171.60 : 862,757.40 = 542,512.40 : x
  2. Step 2: Convert to fraction form
    575,171.60/862,757.40 = 542,512.40/x
  3. Step 3: Cross multiply
    575,171.60x = 862,757.40 × 542,512.40
  4. Step 4: Simplify right side
    575,171.60x = 468,056,587,691.76
  5. Step 5: Solve for x
    x = 468,056,587,691.76/575,171.60
  6. Step 6: Final answer
    x = 813,768.60

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Similar ratio
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1.5x scale

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.