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Finding the Fourth Proportional to 622.01, 864.33 and 615.26

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Solution

The fourth proportional to 622.01, 864.33 and 615.26 is: 854.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.01 : 864.33 = 615.26 : x
  2. Step 2: Convert to fraction form
    622.01/864.33 = 615.26/x
  3. Step 3: Cross multiply
    622.01x = 864.33 × 615.26
  4. Step 4: Simplify right side
    622.01x = 531,787.68
  5. Step 5: Solve for x
    x = 531,787.68/622.01
  6. Step 6: Final answer
    x = 854.95

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.