Home / 642,819.24-964,237.10-443,086.02

Finding the Fourth Proportional to 642,819.24, 964,237.10 and 443,086.02

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Solution

The fourth proportional to 642,819.24, 964,237.10 and 443,086.02 is: 664,634.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,819.24 : 964,237.10 = 443,086.02 : x
  2. Step 2: Convert to fraction form
    642,819.24/964,237.10 = 443,086.02/x
  3. Step 3: Cross multiply
    642,819.24x = 964,237.10 × 443,086.02
  4. Step 4: Simplify right side
    642,819.24x = 427,239,976,759.91
  5. Step 5: Solve for x
    x = 427,239,976,759.91/642,819.24
  6. Step 6: Final answer
    x = 664,634.71

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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.