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Finding the Fourth Proportional to 793.68, 1,095.17 and 462.20

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Solution

The fourth proportional to 793.68, 1,095.17 and 462.20 is: 637.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.68 : 1,095.17 = 462.20 : x
  2. Step 2: Convert to fraction form
    793.68/1,095.17 = 462.20/x
  3. Step 3: Cross multiply
    793.68x = 1,095.17 × 462.20
  4. Step 4: Simplify right side
    793.68x = 506,179.79
  5. Step 5: Solve for x
    x = 506,179.79/793.68
  6. Step 6: Final answer
    x = 637.76

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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.