Home / 431,977.11-647,891.82-116,360.20

Finding the Fourth Proportional to 431,977.11, 647,891.82 and 116,360.20

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Solution

The fourth proportional to 431,977.11, 647,891.82 and 116,360.20 is: 174,520.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,977.11 : 647,891.82 = 116,360.20 : x
  2. Step 2: Convert to fraction form
    431,977.11/647,891.82 = 116,360.20/x
  3. Step 3: Cross multiply
    431,977.11x = 647,891.82 × 116,360.20
  4. Step 4: Simplify right side
    431,977.11x = 75,388,821,753.56
  5. Step 5: Solve for x
    x = 75,388,821,753.56/431,977.11
  6. Step 6: Final answer
    x = 174,520.41

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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.