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Finding the Fourth Proportional to 662.03, 912.97 and 494.35

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Solution

The fourth proportional to 662.03, 912.97 and 494.35 is: 681.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.03 : 912.97 = 494.35 : x
  2. Step 2: Convert to fraction form
    662.03/912.97 = 494.35/x
  3. Step 3: Cross multiply
    662.03x = 912.97 × 494.35
  4. Step 4: Simplify right side
    662.03x = 451,326.72
  5. Step 5: Solve for x
    x = 451,326.72/662.03
  6. Step 6: Final answer
    x = 681.73

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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.