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Finding the Fourth Proportional to 778.57, 1,169.40 and 466.82

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Solution

The fourth proportional to 778.57, 1,169.40 and 466.82 is: 701.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    778.57 : 1,169.40 = 466.82 : x
  2. Step 2: Convert to fraction form
    778.57/1,169.40 = 466.82/x
  3. Step 3: Cross multiply
    778.57x = 1,169.40 × 466.82
  4. Step 4: Simplify right side
    778.57x = 545,899.31
  5. Step 5: Solve for x
    x = 545,899.31/778.57
  6. Step 6: Final answer
    x = 701.16

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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.