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Finding the Fourth Proportional to 627.81, 866.07 and 544.80

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Solution

The fourth proportional to 627.81, 866.07 and 544.80 is: 751.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.81 : 866.07 = 544.80 : x
  2. Step 2: Convert to fraction form
    627.81/866.07 = 544.80/x
  3. Step 3: Cross multiply
    627.81x = 866.07 × 544.80
  4. Step 4: Simplify right side
    627.81x = 471,834.94
  5. Step 5: Solve for x
    x = 471,834.94/627.81
  6. Step 6: Final answer
    x = 751.56

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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.