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Finding the Fourth Proportional to 637.26, 879.44 and 451.08

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Solution

The fourth proportional to 637.26, 879.44 and 451.08 is: 622.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.26 : 879.44 = 451.08 : x
  2. Step 2: Convert to fraction form
    637.26/879.44 = 451.08/x
  3. Step 3: Cross multiply
    637.26x = 879.44 × 451.08
  4. Step 4: Simplify right side
    637.26x = 396,697.80
  5. Step 5: Solve for x
    x = 396,697.80/637.26
  6. Step 6: Final answer
    x = 622.51

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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.