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Finding the Fourth Proportional to 704.42, 971.18 and 482.97

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Solution

The fourth proportional to 704.42, 971.18 and 482.97 is: 665.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    704.42 : 971.18 = 482.97 : x
  2. Step 2: Convert to fraction form
    704.42/971.18 = 482.97/x
  3. Step 3: Cross multiply
    704.42x = 971.18 × 482.97
  4. Step 4: Simplify right side
    704.42x = 469,050.80
  5. Step 5: Solve for x
    x = 469,050.80/704.42
  6. Step 6: Final answer
    x = 665.87

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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.