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Finding the Fourth Proportional to 637,658.76, 955,992.36 and 412,543.56

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Solution

The fourth proportional to 637,658.76, 955,992.36 and 412,543.56 is: 618,494.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,658.76 : 955,992.36 = 412,543.56 : x
  2. Step 2: Convert to fraction form
    637,658.76/955,992.36 = 412,543.56/x
  3. Step 3: Cross multiply
    637,658.76x = 955,992.36 × 412,543.56
  4. Step 4: Simplify right side
    637,658.76x = 394,388,491,527.20
  5. Step 5: Solve for x
    x = 394,388,491,527.20/637,658.76
  6. Step 6: Final answer
    x = 618,494.59

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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.