Home / 787,382.43-1,086,575.48-443,217.61

Finding the Fourth Proportional to 787,382.43, 1,086,575.48 and 443,217.61

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Solution

The fourth proportional to 787,382.43, 1,086,575.48 and 443,217.61 is: 611,633.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,382.43 : 1,086,575.48 = 443,217.61 : x
  2. Step 2: Convert to fraction form
    787,382.43/1,086,575.48 = 443,217.61/x
  3. Step 3: Cross multiply
    787,382.43x = 1,086,575.48 × 443,217.61
  4. Step 4: Simplify right side
    787,382.43x = 481,589,385,114.12
  5. Step 5: Solve for x
    x = 481,589,385,114.12/787,382.43
  6. Step 6: Final answer
    x = 611,633.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.