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Finding the Fourth Proportional to 1,103.32, 1,654.98 and 524.44

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Solution

The fourth proportional to 1,103.32, 1,654.98 and 524.44 is: 786.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103.32 : 1,654.98 = 524.44 : x
  2. Step 2: Convert to fraction form
    1,103.32/1,654.98 = 524.44/x
  3. Step 3: Cross multiply
    1,103.32x = 1,654.98 × 524.44
  4. Step 4: Simplify right side
    1,103.32x = 867,937.71
  5. Step 5: Solve for x
    x = 867,937.71/1,103.32
  6. Step 6: Final answer
    x = 786.66

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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.