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Finding the Fourth Proportional to 632.27, 865.01 and 629.53

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Solution

The fourth proportional to 632.27, 865.01 and 629.53 is: 861.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.27 : 865.01 = 629.53 : x
  2. Step 2: Convert to fraction form
    632.27/865.01 = 629.53/x
  3. Step 3: Cross multiply
    632.27x = 865.01 × 629.53
  4. Step 4: Simplify right side
    632.27x = 544,549.75
  5. Step 5: Solve for x
    x = 544,549.75/632.27
  6. Step 6: Final answer
    x = 861.26

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.