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Finding the Fourth Proportional to 498,753.60, 747,620.10 and 245,644.80

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Solution

The fourth proportional to 498,753.60, 747,620.10 and 245,644.80 is: 368,215.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,753.60 : 747,620.10 = 245,644.80 : x
  2. Step 2: Convert to fraction form
    498,753.60/747,620.10 = 245,644.80/x
  3. Step 3: Cross multiply
    498,753.60x = 747,620.10 × 245,644.80
  4. Step 4: Simplify right side
    498,753.60x = 183,648,989,940.48
  5. Step 5: Solve for x
    x = 183,648,989,940.48/498,753.60
  6. Step 6: Final answer
    x = 368,215.87

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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.