Home / 787,338.13-1,179,115.49-449,354.10

Finding the Fourth Proportional to 787,338.13, 1,179,115.49 and 449,354.10

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Solution

The fourth proportional to 787,338.13, 1,179,115.49 and 449,354.10 is: 672,951.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,338.13 : 1,179,115.49 = 449,354.10 : x
  2. Step 2: Convert to fraction form
    787,338.13/1,179,115.49 = 449,354.10/x
  3. Step 3: Cross multiply
    787,338.13x = 1,179,115.49 × 449,354.10
  4. Step 4: Simplify right side
    787,338.13x = 529,840,379,805.01
  5. Step 5: Solve for x
    x = 529,840,379,805.01/787,338.13
  6. Step 6: Final answer
    x = 672,951.51

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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.