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Finding the Fourth Proportional to 669,538.12, 923,737.81 and 379,110

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Solution

The fourth proportional to 669,538.12, 923,737.81 and 379,110 is: 523,044.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,538.12 : 923,737.81 = 379,110 : x
  2. Step 2: Convert to fraction form
    669,538.12/923,737.81 = 379,110/x
  3. Step 3: Cross multiply
    669,538.12x = 923,737.81 × 379,110
  4. Step 4: Simplify right side
    669,538.12x = 350,198,241,149.10
  5. Step 5: Solve for x
    x = 350,198,241,149.10/669,538.12
  6. Step 6: Final answer
    x = 523,044.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.