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Finding the Fourth Proportional to 626.52, 945.27 and 621.66

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Solution

The fourth proportional to 626.52, 945.27 and 621.66 is: 937.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.52 : 945.27 = 621.66 : x
  2. Step 2: Convert to fraction form
    626.52/945.27 = 621.66/x
  3. Step 3: Cross multiply
    626.52x = 945.27 × 621.66
  4. Step 4: Simplify right side
    626.52x = 587,636.55
  5. Step 5: Solve for x
    x = 587,636.55/626.52
  6. Step 6: Final answer
    x = 937.94

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.