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Finding the Fourth Proportional to 737.59, 1,105.36 and 612.52

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Solution

The fourth proportional to 737.59, 1,105.36 and 612.52 is: 917.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.59 : 1,105.36 = 612.52 : x
  2. Step 2: Convert to fraction form
    737.59/1,105.36 = 612.52/x
  3. Step 3: Cross multiply
    737.59x = 1,105.36 × 612.52
  4. Step 4: Simplify right side
    737.59x = 677,049.28
  5. Step 5: Solve for x
    x = 677,049.28/737.59
  6. Step 6: Final answer
    x = 917.92

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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.