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Finding the Fourth Proportional to 485,171.60, 726,720.60 and 402,227.60

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Solution

The fourth proportional to 485,171.60, 726,720.60 and 402,227.60 is: 602,481.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,171.60 : 726,720.60 = 402,227.60 : x
  2. Step 2: Convert to fraction form
    485,171.60/726,720.60 = 402,227.60/x
  3. Step 3: Cross multiply
    485,171.60x = 726,720.60 × 402,227.60
  4. Step 4: Simplify right side
    485,171.60x = 292,307,082,808.56
  5. Step 5: Solve for x
    x = 292,307,082,808.56/485,171.60
  6. Step 6: Final answer
    x = 602,481.85

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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.