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Finding the Fourth Proportional to 481,149.64, 721,721.22 and 376,057

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Solution

The fourth proportional to 481,149.64, 721,721.22 and 376,057 is: 564,082.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,149.64 : 721,721.22 = 376,057 : x
  2. Step 2: Convert to fraction form
    481,149.64/721,721.22 = 376,057/x
  3. Step 3: Cross multiply
    481,149.64x = 721,721.22 × 376,057
  4. Step 4: Simplify right side
    481,149.64x = 271,408,316,829.54
  5. Step 5: Solve for x
    x = 271,408,316,829.54/481,149.64
  6. Step 6: Final answer
    x = 564,082.97

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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.