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Finding the Fourth Proportional to 702.15, 967.08 and 608.90

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Solution

The fourth proportional to 702.15, 967.08 and 608.90 is: 838.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    702.15 : 967.08 = 608.90 : x
  2. Step 2: Convert to fraction form
    702.15/967.08 = 608.90/x
  3. Step 3: Cross multiply
    702.15x = 967.08 × 608.90
  4. Step 4: Simplify right side
    702.15x = 588,850.18
  5. Step 5: Solve for x
    x = 588,850.18/702.15
  6. Step 6: Final answer
    x = 838.64

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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.