Home / 498,541.60-747,812.40-443,429.20

Finding the Fourth Proportional to 498,541.60, 747,812.40 and 443,429.20

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Solution

The fourth proportional to 498,541.60, 747,812.40 and 443,429.20 is: 665,143.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,541.60 : 747,812.40 = 443,429.20 : x
  2. Step 2: Convert to fraction form
    498,541.60/747,812.40 = 443,429.20/x
  3. Step 3: Cross multiply
    498,541.60x = 747,812.40 × 443,429.20
  4. Step 4: Simplify right side
    498,541.60x = 331,601,854,282.08
  5. Step 5: Solve for x
    x = 331,601,854,282.08/498,541.60
  6. Step 6: Final answer
    x = 665,143.80

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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.