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Finding the Fourth Proportional to 697.53, 962.60 and 476.47

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Solution

The fourth proportional to 697.53, 962.60 and 476.47 is: 657.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.53 : 962.60 = 476.47 : x
  2. Step 2: Convert to fraction form
    697.53/962.60 = 476.47/x
  3. Step 3: Cross multiply
    697.53x = 962.60 × 476.47
  4. Step 4: Simplify right side
    697.53x = 458,650.02
  5. Step 5: Solve for x
    x = 458,650.02/697.53
  6. Step 6: Final answer
    x = 657.53

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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.