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Finding the Fourth Proportional to 702.98, 969.96 and 481.88

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Solution

The fourth proportional to 702.98, 969.96 and 481.88 is: 664.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    702.98 : 969.96 = 481.88 : x
  2. Step 2: Convert to fraction form
    702.98/969.96 = 481.88/x
  3. Step 3: Cross multiply
    702.98x = 969.96 × 481.88
  4. Step 4: Simplify right side
    702.98x = 467,404.32
  5. Step 5: Solve for x
    x = 467,404.32/702.98
  6. Step 6: Final answer
    x = 664.89

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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.