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Finding the Fourth Proportional to 443,489.53, 665,654.87 and 274,498.68

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Solution

The fourth proportional to 443,489.53, 665,654.87 and 274,498.68 is: 412,008.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,489.53 : 665,654.87 = 274,498.68 : x
  2. Step 2: Convert to fraction form
    443,489.53/665,654.87 = 274,498.68/x
  3. Step 3: Cross multiply
    443,489.53x = 665,654.87 × 274,498.68
  4. Step 4: Simplify right side
    443,489.53x = 182,721,379,822.30
  5. Step 5: Solve for x
    x = 182,721,379,822.30/443,489.53
  6. Step 6: Final answer
    x = 412,008.33

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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.