Home / 721,067.46-994,962.55-415,084.71

Finding the Fourth Proportional to 721,067.46, 994,962.55 and 415,084.71

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Solution

The fourth proportional to 721,067.46, 994,962.55 and 415,084.71 is: 572,753.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,067.46 : 994,962.55 = 415,084.71 : x
  2. Step 2: Convert to fraction form
    721,067.46/994,962.55 = 415,084.71/x
  3. Step 3: Cross multiply
    721,067.46x = 994,962.55 × 415,084.71
  4. Step 4: Simplify right side
    721,067.46x = 412,993,741,527.61
  5. Step 5: Solve for x
    x = 412,993,741,527.61/721,067.46
  6. Step 6: Final answer
    x = 572,753.26

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1.5x scale

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.