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Finding the Fourth Proportional to 704.08, 1,056.28 and 271.24

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Solution

The fourth proportional to 704.08, 1,056.28 and 271.24 is: 406.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    704.08 : 1,056.28 = 271.24 : x
  2. Step 2: Convert to fraction form
    704.08/1,056.28 = 271.24/x
  3. Step 3: Cross multiply
    704.08x = 1,056.28 × 271.24
  4. Step 4: Simplify right side
    704.08x = 286,505.39
  5. Step 5: Solve for x
    x = 286,505.39/704.08
  6. Step 6: Final answer
    x = 406.92

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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.