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Finding the Fourth Proportional to 627.55, 860.98 and 596.57

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Solution

The fourth proportional to 627.55, 860.98 and 596.57 is: 818.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.55 : 860.98 = 596.57 : x
  2. Step 2: Convert to fraction form
    627.55/860.98 = 596.57/x
  3. Step 3: Cross multiply
    627.55x = 860.98 × 596.57
  4. Step 4: Simplify right side
    627.55x = 513,630.16
  5. Step 5: Solve for x
    x = 513,630.16/627.55
  6. Step 6: Final answer
    x = 818.47

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.