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Finding the Fourth Proportional to 737.23, 1,105.28 and 477.49

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Solution

The fourth proportional to 737.23, 1,105.28 and 477.49 is: 715.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.23 : 1,105.28 = 477.49 : x
  2. Step 2: Convert to fraction form
    737.23/1,105.28 = 477.49/x
  3. Step 3: Cross multiply
    737.23x = 1,105.28 × 477.49
  4. Step 4: Simplify right side
    737.23x = 527,761.34
  5. Step 5: Solve for x
    x = 527,761.34/737.23
  6. Step 6: Final answer
    x = 715.87

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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.