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Finding the Fourth Proportional to 702.70, 968.82 and 453.58

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Solution

The fourth proportional to 702.70, 968.82 and 453.58 is: 625.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    702.70 : 968.82 = 453.58 : x
  2. Step 2: Convert to fraction form
    702.70/968.82 = 453.58/x
  3. Step 3: Cross multiply
    702.70x = 968.82 × 453.58
  4. Step 4: Simplify right side
    702.70x = 439,437.38
  5. Step 5: Solve for x
    x = 439,437.38/702.70
  6. Step 6: Final answer
    x = 625.36

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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.