Home / 744,121.92-1,115,620.80-383,906.88

Finding the Fourth Proportional to 744,121.92, 1,115,620.80 and 383,906.88

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Solution

The fourth proportional to 744,121.92, 1,115,620.80 and 383,906.88 is: 575,570.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,121.92 : 1,115,620.80 = 383,906.88 : x
  2. Step 2: Convert to fraction form
    744,121.92/1,115,620.80 = 383,906.88/x
  3. Step 3: Cross multiply
    744,121.92x = 1,115,620.80 × 383,906.88
  4. Step 4: Simplify right side
    744,121.92x = 428,294,500,591.10
  5. Step 5: Solve for x
    x = 428,294,500,591.10/744,121.92
  6. Step 6: Final answer
    x = 575,570.33

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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.