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Finding the Fourth Proportional to 402,427.52, 603,174.68 and 379,099.52

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Solution

The fourth proportional to 402,427.52, 603,174.68 and 379,099.52 is: 568,209.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,427.52 : 603,174.68 = 379,099.52 : x
  2. Step 2: Convert to fraction form
    402,427.52/603,174.68 = 379,099.52/x
  3. Step 3: Cross multiply
    402,427.52x = 603,174.68 × 379,099.52
  4. Step 4: Simplify right side
    402,427.52x = 228,663,231,664.15
  5. Step 5: Solve for x
    x = 228,663,231,664.15/402,427.52
  6. Step 6: Final answer
    x = 568,209.73

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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.