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Finding the Fourth Proportional to 794.82, 1,191.68 and 470.02

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Solution

The fourth proportional to 794.82, 1,191.68 and 470.02 is: 704.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.82 : 1,191.68 = 470.02 : x
  2. Step 2: Convert to fraction form
    794.82/1,191.68 = 470.02/x
  3. Step 3: Cross multiply
    794.82x = 1,191.68 × 470.02
  4. Step 4: Simplify right side
    794.82x = 560,113.43
  5. Step 5: Solve for x
    x = 560,113.43/794.82
  6. Step 6: Final answer
    x = 704.70

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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.