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Finding the Fourth Proportional to 794.91, 1,097.10 and 480.22

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Solution

The fourth proportional to 794.91, 1,097.10 and 480.22 is: 662.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.91 : 1,097.10 = 480.22 : x
  2. Step 2: Convert to fraction form
    794.91/1,097.10 = 480.22/x
  3. Step 3: Cross multiply
    794.91x = 1,097.10 × 480.22
  4. Step 4: Simplify right side
    794.91x = 526,846.62
  5. Step 5: Solve for x
    x = 526,846.62/794.91
  6. Step 6: Final answer
    x = 662.77

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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.