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Finding the Fourth Proportional to 662.54, 994.16 and 481.43

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Solution

The fourth proportional to 662.54, 994.16 and 481.43 is: 722.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.54 : 994.16 = 481.43 : x
  2. Step 2: Convert to fraction form
    662.54/994.16 = 481.43/x
  3. Step 3: Cross multiply
    662.54x = 994.16 × 481.43
  4. Step 4: Simplify right side
    662.54x = 478,618.45
  5. Step 5: Solve for x
    x = 478,618.45/662.54
  6. Step 6: Final answer
    x = 722.40

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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.