Home / 739,478.38-1,109,217.58-240,842.38

Finding the Fourth Proportional to 739,478.38, 1,109,217.58 and 240,842.38

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Solution

The fourth proportional to 739,478.38, 1,109,217.58 and 240,842.38 is: 361,263.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,478.38 : 1,109,217.58 = 240,842.38 : x
  2. Step 2: Convert to fraction form
    739,478.38/1,109,217.58 = 240,842.38/x
  3. Step 3: Cross multiply
    739,478.38x = 1,109,217.58 × 240,842.38
  4. Step 4: Simplify right side
    739,478.38x = 267,146,601,905.04
  5. Step 5: Solve for x
    x = 267,146,601,905.04/739,478.38
  6. Step 6: Final answer
    x = 361,263.57

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Half scale
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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.