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Finding the Fourth Proportional to 1,104.45, 1,524.09 and 607.11

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Solution

The fourth proportional to 1,104.45, 1,524.09 and 607.11 is: 837.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,104.45 : 1,524.09 = 607.11 : x
  2. Step 2: Convert to fraction form
    1,104.45/1,524.09 = 607.11/x
  3. Step 3: Cross multiply
    1,104.45x = 1,524.09 × 607.11
  4. Step 4: Simplify right side
    1,104.45x = 925,290.28
  5. Step 5: Solve for x
    x = 925,290.28/1,104.45
  6. Step 6: Final answer
    x = 837.78

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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.