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Finding the Fourth Proportional to 963.75, 1,329.85 and 544.08

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Solution

The fourth proportional to 963.75, 1,329.85 and 544.08 is: 750.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    963.75 : 1,329.85 = 544.08 : x
  2. Step 2: Convert to fraction form
    963.75/1,329.85 = 544.08/x
  3. Step 3: Cross multiply
    963.75x = 1,329.85 × 544.08
  4. Step 4: Simplify right side
    963.75x = 723,544.79
  5. Step 5: Solve for x
    x = 723,544.79/963.75
  6. Step 6: Final answer
    x = 750.76

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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.