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Finding the Fourth Proportional to 638.60, 879.53 and 600.33

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Solution

The fourth proportional to 638.60, 879.53 and 600.33 is: 826.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    638.60 : 879.53 = 600.33 : x
  2. Step 2: Convert to fraction form
    638.60/879.53 = 600.33/x
  3. Step 3: Cross multiply
    638.60x = 879.53 × 600.33
  4. Step 4: Simplify right side
    638.60x = 528,005.24
  5. Step 5: Solve for x
    x = 528,005.24/638.60
  6. Step 6: Final answer
    x = 826.82

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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.