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Finding the Fourth Proportional to 729.75, 1,094.09 and 470.04

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Solution

The fourth proportional to 729.75, 1,094.09 and 470.04 is: 704.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    729.75 : 1,094.09 = 470.04 : x
  2. Step 2: Convert to fraction form
    729.75/1,094.09 = 470.04/x
  3. Step 3: Cross multiply
    729.75x = 1,094.09 × 470.04
  4. Step 4: Simplify right side
    729.75x = 514,263.71
  5. Step 5: Solve for x
    x = 514,263.71/729.75
  6. Step 6: Final answer
    x = 704.71

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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.