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Finding the Fourth Proportional to 547.28, 759.06 and 528.75

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Solution

The fourth proportional to 547.28, 759.06 and 528.75 is: 733.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.28 : 759.06 = 528.75 : x
  2. Step 2: Convert to fraction form
    547.28/759.06 = 528.75/x
  3. Step 3: Cross multiply
    547.28x = 759.06 × 528.75
  4. Step 4: Simplify right side
    547.28x = 401,352.98
  5. Step 5: Solve for x
    x = 401,352.98/547.28
  6. Step 6: Final answer
    x = 733.37

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.