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Finding the Fourth Proportional to 499,062.80, 747,773.40 and 288,333.20

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Solution

The fourth proportional to 499,062.80, 747,773.40 and 288,333.20 is: 432,025.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,062.80 : 747,773.40 = 288,333.20 : x
  2. Step 2: Convert to fraction form
    499,062.80/747,773.40 = 288,333.20/x
  3. Step 3: Cross multiply
    499,062.80x = 747,773.40 × 288,333.20
  4. Step 4: Simplify right side
    499,062.80x = 215,607,897,296.88
  5. Step 5: Solve for x
    x = 215,607,897,296.88/499,062.80
  6. Step 6: Final answer
    x = 432,025.58

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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.