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Finding the Fourth Proportional to 654.62, 982.61 and 481.49

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Solution

The fourth proportional to 654.62, 982.61 and 481.49 is: 722.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    654.62 : 982.61 = 481.49 : x
  2. Step 2: Convert to fraction form
    654.62/982.61 = 481.49/x
  3. Step 3: Cross multiply
    654.62x = 982.61 × 481.49
  4. Step 4: Simplify right side
    654.62x = 473,113.18
  5. Step 5: Solve for x
    x = 473,113.18/654.62
  6. Step 6: Final answer
    x = 722.73

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.