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Finding the Fourth Proportional to 500.37, 748.83 and 396.78

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Solution

The fourth proportional to 500.37, 748.83 and 396.78 is: 593.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.37 : 748.83 = 396.78 : x
  2. Step 2: Convert to fraction form
    500.37/748.83 = 396.78/x
  3. Step 3: Cross multiply
    500.37x = 748.83 × 396.78
  4. Step 4: Simplify right side
    500.37x = 297,120.77
  5. Step 5: Solve for x
    x = 297,120.77/500.37
  6. Step 6: Final answer
    x = 593.80

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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.