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Finding the Fourth Proportional to 650.38, 897.81 and 454.66

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Solution

The fourth proportional to 650.38, 897.81 and 454.66 is: 627.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.38 : 897.81 = 454.66 : x
  2. Step 2: Convert to fraction form
    650.38/897.81 = 454.66/x
  3. Step 3: Cross multiply
    650.38x = 897.81 × 454.66
  4. Step 4: Simplify right side
    650.38x = 408,198.29
  5. Step 5: Solve for x
    x = 408,198.29/650.38
  6. Step 6: Final answer
    x = 627.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.