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Finding the Fourth Proportional to 960.84, 1,325.92 and 567.84

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Solution

The fourth proportional to 960.84, 1,325.92 and 567.84 is: 783.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    960.84 : 1,325.92 = 567.84 : x
  2. Step 2: Convert to fraction form
    960.84/1,325.92 = 567.84/x
  3. Step 3: Cross multiply
    960.84x = 1,325.92 × 567.84
  4. Step 4: Simplify right side
    960.84x = 752,910.41
  5. Step 5: Solve for x
    x = 752,910.41/960.84
  6. Step 6: Final answer
    x = 783.60

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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.