Home / 485,331.80-727,997.70-441,786.20

Finding the Fourth Proportional to 485,331.80, 727,997.70 and 441,786.20

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Solution

The fourth proportional to 485,331.80, 727,997.70 and 441,786.20 is: 662,679.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,331.80 : 727,997.70 = 441,786.20 : x
  2. Step 2: Convert to fraction form
    485,331.80/727,997.70 = 441,786.20/x
  3. Step 3: Cross multiply
    485,331.80x = 727,997.70 × 441,786.20
  4. Step 4: Simplify right side
    485,331.80x = 321,619,337,491.74
  5. Step 5: Solve for x
    x = 321,619,337,491.74/485,331.80
  6. Step 6: Final answer
    x = 662,679.30

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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.