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Finding the Fourth Proportional to 626.75, 937.76 and 383.43

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Solution

The fourth proportional to 626.75, 937.76 and 383.43 is: 573.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.75 : 937.76 = 383.43 : x
  2. Step 2: Convert to fraction form
    626.75/937.76 = 383.43/x
  3. Step 3: Cross multiply
    626.75x = 937.76 × 383.43
  4. Step 4: Simplify right side
    626.75x = 359,563.40
  5. Step 5: Solve for x
    x = 359,563.40/626.75
  6. Step 6: Final answer
    x = 573.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.