Home / 826,626.20-1,239,939.30-294,747.80

Finding the Fourth Proportional to 826,626.20, 1,239,939.30 and 294,747.80

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Solution

The fourth proportional to 826,626.20, 1,239,939.30 and 294,747.80 is: 442,121.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,626.20 : 1,239,939.30 = 294,747.80 : x
  2. Step 2: Convert to fraction form
    826,626.20/1,239,939.30 = 294,747.80/x
  3. Step 3: Cross multiply
    826,626.20x = 1,239,939.30 × 294,747.80
  4. Step 4: Simplify right side
    826,626.20x = 365,469,380,808.54
  5. Step 5: Solve for x
    x = 365,469,380,808.54/826,626.20
  6. Step 6: Final answer
    x = 442,121.70

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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.