Home / 822,591.90-1,135,155.47-455,082.61

Finding the Fourth Proportional to 822,591.90, 1,135,155.47 and 455,082.61

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Solution

The fourth proportional to 822,591.90, 1,135,155.47 and 455,082.61 is: 628,002.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,591.90 : 1,135,155.47 = 455,082.61 : x
  2. Step 2: Convert to fraction form
    822,591.90/1,135,155.47 = 455,082.61/x
  3. Step 3: Cross multiply
    822,591.90x = 1,135,155.47 × 455,082.61
  4. Step 4: Simplify right side
    822,591.90x = 516,589,511,767.96
  5. Step 5: Solve for x
    x = 516,589,511,767.96/822,591.90
  6. Step 6: Final answer
    x = 628,002.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.