Home / 625,285.18-862,909.62-383,701.24

Finding the Fourth Proportional to 625,285.18, 862,909.62 and 383,701.24

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Solution

The fourth proportional to 625,285.18, 862,909.62 and 383,701.24 is: 529,517.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,285.18 : 862,909.62 = 383,701.24 : x
  2. Step 2: Convert to fraction form
    625,285.18/862,909.62 = 383,701.24/x
  3. Step 3: Cross multiply
    625,285.18x = 862,909.62 × 383,701.24
  4. Step 4: Simplify right side
    625,285.18x = 331,099,491,201.93
  5. Step 5: Solve for x
    x = 331,099,491,201.93/625,285.18
  6. Step 6: Final answer
    x = 529,517.57

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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.