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Finding the Fourth Proportional to 632.84, 865.84 and 630.44

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Solution

The fourth proportional to 632.84, 865.84 and 630.44 is: 862.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.84 : 865.84 = 630.44 : x
  2. Step 2: Convert to fraction form
    632.84/865.84 = 630.44/x
  3. Step 3: Cross multiply
    632.84x = 865.84 × 630.44
  4. Step 4: Simplify right side
    632.84x = 545,860.17
  5. Step 5: Solve for x
    x = 545,860.17/632.84
  6. Step 6: Final answer
    x = 862.56

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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.