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Finding the Fourth Proportional to 702.09, 968.67 and 453.30

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Solution

The fourth proportional to 702.09, 968.67 and 453.30 is: 625.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    702.09 : 968.67 = 453.30 : x
  2. Step 2: Convert to fraction form
    702.09/968.67 = 453.30/x
  3. Step 3: Cross multiply
    702.09x = 968.67 × 453.30
  4. Step 4: Simplify right side
    702.09x = 439,098.11
  5. Step 5: Solve for x
    x = 439,098.11/702.09
  6. Step 6: Final answer
    x = 625.42

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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.