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Finding the Fourth Proportional to 734.38, 1,098.96 and 632.86

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Solution

The fourth proportional to 734.38, 1,098.96 and 632.86 is: 947.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    734.38 : 1,098.96 = 632.86 : x
  2. Step 2: Convert to fraction form
    734.38/1,098.96 = 632.86/x
  3. Step 3: Cross multiply
    734.38x = 1,098.96 × 632.86
  4. Step 4: Simplify right side
    734.38x = 695,487.83
  5. Step 5: Solve for x
    x = 695,487.83/734.38
  6. Step 6: Final answer
    x = 947.04

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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.