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Finding the Fourth Proportional to 795.42, 1,191.84 and 470.40

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Solution

The fourth proportional to 795.42, 1,191.84 and 470.40 is: 704.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.42 : 1,191.84 = 470.40 : x
  2. Step 2: Convert to fraction form
    795.42/1,191.84 = 470.40/x
  3. Step 3: Cross multiply
    795.42x = 1,191.84 × 470.40
  4. Step 4: Simplify right side
    795.42x = 560,641.54
  5. Step 5: Solve for x
    x = 560,641.54/795.42
  6. Step 6: Final answer
    x = 704.84

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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.