Home / 721,167-1,081,520.46-247,738.20

Finding the Fourth Proportional to 721,167, 1,081,520.46 and 247,738.20

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Solution

The fourth proportional to 721,167, 1,081,520.46 and 247,738.20 is: 371,528.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,167 : 1,081,520.46 = 247,738.20 : x
  2. Step 2: Convert to fraction form
    721,167/1,081,520.46 = 247,738.20/x
  3. Step 3: Cross multiply
    721,167x = 1,081,520.46 × 247,738.20
  4. Step 4: Simplify right side
    721,167x = 267,933,932,023.57
  5. Step 5: Solve for x
    x = 267,933,932,023.57/721,167
  6. Step 6: Final answer
    x = 371,528.28

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Double scale
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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.