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Finding the Fourth Proportional to 880.75, 1,320.49 and 633.97

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Solution

The fourth proportional to 880.75, 1,320.49 and 633.97 is: 950.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    880.75 : 1,320.49 = 633.97 : x
  2. Step 2: Convert to fraction form
    880.75/1,320.49 = 633.97/x
  3. Step 3: Cross multiply
    880.75x = 1,320.49 × 633.97
  4. Step 4: Simplify right side
    880.75x = 837,151.05
  5. Step 5: Solve for x
    x = 837,151.05/880.75
  6. Step 6: Final answer
    x = 950.50

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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.