Home / 642,819.99-964,238.22-443,086.77

Finding the Fourth Proportional to 642,819.99, 964,238.22 and 443,086.77

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Solution

The fourth proportional to 642,819.99, 964,238.22 and 443,086.77 is: 664,635.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,819.99 : 964,238.22 = 443,086.77 : x
  2. Step 2: Convert to fraction form
    642,819.99/964,238.22 = 443,086.77/x
  3. Step 3: Cross multiply
    642,819.99x = 964,238.22 × 443,086.77
  4. Step 4: Simplify right side
    642,819.99x = 427,241,198,410.35
  5. Step 5: Solve for x
    x = 427,241,198,410.35/642,819.99
  6. Step 6: Final answer
    x = 664,635.83

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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.