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Finding the Fourth Proportional to 493, 738.50 and 411.58

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Solution

The fourth proportional to 493, 738.50 and 411.58 is: 616.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    493 : 738.50 = 411.58 : x
  2. Step 2: Convert to fraction form
    493/738.50 = 411.58/x
  3. Step 3: Cross multiply
    493x = 738.50 × 411.58
  4. Step 4: Simplify right side
    493x = 303,951.83
  5. Step 5: Solve for x
    x = 303,951.83/493
  6. Step 6: Final answer
    x = 616.54

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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.