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Finding the Fourth Proportional to 698.56, 962.51 and 501.73

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Solution

The fourth proportional to 698.56, 962.51 and 501.73 is: 691.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    698.56 : 962.51 = 501.73 : x
  2. Step 2: Convert to fraction form
    698.56/962.51 = 501.73/x
  3. Step 3: Cross multiply
    698.56x = 962.51 × 501.73
  4. Step 4: Simplify right side
    698.56x = 482,915.23
  5. Step 5: Solve for x
    x = 482,915.23/698.56
  6. Step 6: Final answer
    x = 691.30

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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.