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Finding the Fourth Proportional to 789.74, 1,183.29 and 496.52

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Solution

The fourth proportional to 789.74, 1,183.29 and 496.52 is: 743.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    789.74 : 1,183.29 = 496.52 : x
  2. Step 2: Convert to fraction form
    789.74/1,183.29 = 496.52/x
  3. Step 3: Cross multiply
    789.74x = 1,183.29 × 496.52
  4. Step 4: Simplify right side
    789.74x = 587,527.15
  5. Step 5: Solve for x
    x = 587,527.15/789.74
  6. Step 6: Final answer
    x = 743.95

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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.