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Finding the Fourth Proportional to 735.52, 1,103.54 and 489.71

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Solution

The fourth proportional to 735.52, 1,103.54 and 489.71 is: 734.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    735.52 : 1,103.54 = 489.71 : x
  2. Step 2: Convert to fraction form
    735.52/1,103.54 = 489.71/x
  3. Step 3: Cross multiply
    735.52x = 1,103.54 × 489.71
  4. Step 4: Simplify right side
    735.52x = 540,414.57
  5. Step 5: Solve for x
    x = 540,414.57/735.52
  6. Step 6: Final answer
    x = 734.74

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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.