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Finding the Fourth Proportional to 650.24, 974.24 and 419.66

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Solution

The fourth proportional to 650.24, 974.24 and 419.66 is: 628.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.24 : 974.24 = 419.66 : x
  2. Step 2: Convert to fraction form
    650.24/974.24 = 419.66/x
  3. Step 3: Cross multiply
    650.24x = 974.24 × 419.66
  4. Step 4: Simplify right side
    650.24x = 408,849.56
  5. Step 5: Solve for x
    x = 408,849.56/650.24
  6. Step 6: Final answer
    x = 628.77

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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.