Home / 739,481.40-1,109,222.10-178,515.90

Finding the Fourth Proportional to 739,481.40, 1,109,222.10 and 178,515.90

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Solution

The fourth proportional to 739,481.40, 1,109,222.10 and 178,515.90 is: 267,773.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,481.40 : 1,109,222.10 = 178,515.90 : x
  2. Step 2: Convert to fraction form
    739,481.40/1,109,222.10 = 178,515.90/x
  3. Step 3: Cross multiply
    739,481.40x = 1,109,222.10 × 178,515.90
  4. Step 4: Simplify right side
    739,481.40x = 198,013,781,481.39
  5. Step 5: Solve for x
    x = 198,013,781,481.39/739,481.40
  6. Step 6: Final answer
    x = 267,773.85

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Double scale
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Similar ratio
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1.5x scale

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.