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Finding the Fourth Proportional to 701.53, 968.81 and 481.45

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Solution

The fourth proportional to 701.53, 968.81 and 481.45 is: 664.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.53 : 968.81 = 481.45 : x
  2. Step 2: Convert to fraction form
    701.53/968.81 = 481.45/x
  3. Step 3: Cross multiply
    701.53x = 968.81 × 481.45
  4. Step 4: Simplify right side
    701.53x = 466,433.57
  5. Step 5: Solve for x
    x = 466,433.57/701.53
  6. Step 6: Final answer
    x = 664.88

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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.