Home / 572,720.10-859,080.15-479,408.10

Finding the Fourth Proportional to 572,720.10, 859,080.15 and 479,408.10

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Solution

The fourth proportional to 572,720.10, 859,080.15 and 479,408.10 is: 719,112.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,720.10 : 859,080.15 = 479,408.10 : x
  2. Step 2: Convert to fraction form
    572,720.10/859,080.15 = 479,408.10/x
  3. Step 3: Cross multiply
    572,720.10x = 859,080.15 × 479,408.10
  4. Step 4: Simplify right side
    572,720.10x = 411,849,982,459.22
  5. Step 5: Solve for x
    x = 411,849,982,459.22/572,720.10
  6. Step 6: Final answer
    x = 719,112.15

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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.