Home / 712,079.13-1,067,380.57-445,226.86

Finding the Fourth Proportional to 712,079.13, 1,067,380.57 and 445,226.86

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Solution

The fourth proportional to 712,079.13, 1,067,380.57 and 445,226.86 is: 667,378.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,079.13 : 1,067,380.57 = 445,226.86 : x
  2. Step 2: Convert to fraction form
    712,079.13/1,067,380.57 = 445,226.86/x
  3. Step 3: Cross multiply
    712,079.13x = 1,067,380.57 × 445,226.86
  4. Step 4: Simplify right side
    712,079.13x = 475,226,499,606.11
  5. Step 5: Solve for x
    x = 475,226,499,606.11/712,079.13
  6. Step 6: Final answer
    x = 667,378.78

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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.