Home / 826,882.80-1,240,324.20-721,906.80

Finding the Fourth Proportional to 826,882.80, 1,240,324.20 and 721,906.80

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Solution

The fourth proportional to 826,882.80, 1,240,324.20 and 721,906.80 is: 1,082,860.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,882.80 : 1,240,324.20 = 721,906.80 : x
  2. Step 2: Convert to fraction form
    826,882.80/1,240,324.20 = 721,906.80/x
  3. Step 3: Cross multiply
    826,882.80x = 1,240,324.20 × 721,906.80
  4. Step 4: Simplify right side
    826,882.80x = 895,398,474,184.56
  5. Step 5: Solve for x
    x = 895,398,474,184.56/826,882.80
  6. Step 6: Final answer
    x = 1,082,860.20

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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.