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Finding the Fourth Proportional to 627.56, 936.60 and 575.27

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Solution

The fourth proportional to 627.56, 936.60 and 575.27 is: 858.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.56 : 936.60 = 575.27 : x
  2. Step 2: Convert to fraction form
    627.56/936.60 = 575.27/x
  3. Step 3: Cross multiply
    627.56x = 936.60 × 575.27
  4. Step 4: Simplify right side
    627.56x = 538,797.88
  5. Step 5: Solve for x
    x = 538,797.88/627.56
  6. Step 6: Final answer
    x = 858.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.