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Finding the Fourth Proportional to 542.28, 811.92 and 464.88

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Solution

The fourth proportional to 542.28, 811.92 and 464.88 is: 696.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    542.28 : 811.92 = 464.88 : x
  2. Step 2: Convert to fraction form
    542.28/811.92 = 464.88/x
  3. Step 3: Cross multiply
    542.28x = 811.92 × 464.88
  4. Step 4: Simplify right side
    542.28x = 377,445.37
  5. Step 5: Solve for x
    x = 377,445.37/542.28
  6. Step 6: Final answer
    x = 696.03

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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.