Home / 826,832.80-1,240,249.20-721,856.80

Finding the Fourth Proportional to 826,832.80, 1,240,249.20 and 721,856.80

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Solution

The fourth proportional to 826,832.80, 1,240,249.20 and 721,856.80 is: 1,082,785.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,832.80 : 1,240,249.20 = 721,856.80 : x
  2. Step 2: Convert to fraction form
    826,832.80/1,240,249.20 = 721,856.80/x
  3. Step 3: Cross multiply
    826,832.80x = 1,240,249.20 × 721,856.80
  4. Step 4: Simplify right side
    826,832.80x = 895,282,318,714.56
  5. Step 5: Solve for x
    x = 895,282,318,714.56/826,832.80
  6. Step 6: Final answer
    x = 1,082,785.20

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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.