Home / 490,732.20-736,098.30-412,000.20

Finding the Fourth Proportional to 490,732.20, 736,098.30 and 412,000.20

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Solution

The fourth proportional to 490,732.20, 736,098.30 and 412,000.20 is: 618,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,732.20 : 736,098.30 = 412,000.20 : x
  2. Step 2: Convert to fraction form
    490,732.20/736,098.30 = 412,000.20/x
  3. Step 3: Cross multiply
    490,732.20x = 736,098.30 × 412,000.20
  4. Step 4: Simplify right side
    490,732.20x = 303,272,646,819.66
  5. Step 5: Solve for x
    x = 303,272,646,819.66/490,732.20
  6. Step 6: Final answer
    x = 618,000.30

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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.