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Finding the Fourth Proportional to 698.07, 963.46 and 531.97

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Solution

The fourth proportional to 698.07, 963.46 and 531.97 is: 734.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    698.07 : 963.46 = 531.97 : x
  2. Step 2: Convert to fraction form
    698.07/963.46 = 531.97/x
  3. Step 3: Cross multiply
    698.07x = 963.46 × 531.97
  4. Step 4: Simplify right side
    698.07x = 512,531.82
  5. Step 5: Solve for x
    x = 512,531.82/698.07
  6. Step 6: Final answer
    x = 734.21

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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.