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Finding the Fourth Proportional to 702.06, 968.79 and 453.39

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Solution

The fourth proportional to 702.06, 968.79 and 453.39 is: 625.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    702.06 : 968.79 = 453.39 : x
  2. Step 2: Convert to fraction form
    702.06/968.79 = 453.39/x
  3. Step 3: Cross multiply
    702.06x = 968.79 × 453.39
  4. Step 4: Simplify right side
    702.06x = 439,239.70
  5. Step 5: Solve for x
    x = 439,239.70/702.06
  6. Step 6: Final answer
    x = 625.64

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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.