Home / 572,743.85-859,115.78-479,431.85

Finding the Fourth Proportional to 572,743.85, 859,115.78 and 479,431.85

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Solution

The fourth proportional to 572,743.85, 859,115.78 and 479,431.85 is: 719,147.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,743.85 : 859,115.78 = 479,431.85 : x
  2. Step 2: Convert to fraction form
    572,743.85/859,115.78 = 479,431.85/x
  3. Step 3: Cross multiply
    572,743.85x = 859,115.78 × 479,431.85
  4. Step 4: Simplify right side
    572,743.85x = 411,887,465,372.43
  5. Step 5: Solve for x
    x = 411,887,465,372.43/572,743.85
  6. Step 6: Final answer
    x = 719,147.78

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Half scale
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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.