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Finding the Fourth Proportional to 968.54, 1,336.46 and 548.82

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Solution

The fourth proportional to 968.54, 1,336.46 and 548.82 is: 757.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.54 : 1,336.46 = 548.82 : x
  2. Step 2: Convert to fraction form
    968.54/1,336.46 = 548.82/x
  3. Step 3: Cross multiply
    968.54x = 1,336.46 × 548.82
  4. Step 4: Simplify right side
    968.54x = 733,473.23
  5. Step 5: Solve for x
    x = 733,473.23/968.54
  6. Step 6: Final answer
    x = 757.30

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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.