Home / 454,969.20-682,453.80-139,385.10

Finding the Fourth Proportional to 454,969.20, 682,453.80 and 139,385.10

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Solution

The fourth proportional to 454,969.20, 682,453.80 and 139,385.10 is: 209,077.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,969.20 : 682,453.80 = 139,385.10 : x
  2. Step 2: Convert to fraction form
    454,969.20/682,453.80 = 139,385.10/x
  3. Step 3: Cross multiply
    454,969.20x = 682,453.80 × 139,385.10
  4. Step 4: Simplify right side
    454,969.20x = 95,123,891,158.38
  5. Step 5: Solve for x
    x = 95,123,891,158.38/454,969.20
  6. Step 6: Final answer
    x = 209,077.65

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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.