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Finding the Fourth Proportional to 793.70, 1,094.02 and 636.07

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Solution

The fourth proportional to 793.70, 1,094.02 and 636.07 is: 876.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.70 : 1,094.02 = 636.07 : x
  2. Step 2: Convert to fraction form
    793.70/1,094.02 = 636.07/x
  3. Step 3: Cross multiply
    793.70x = 1,094.02 × 636.07
  4. Step 4: Simplify right side
    793.70x = 695,873.30
  5. Step 5: Solve for x
    x = 695,873.30/793.70
  6. Step 6: Final answer
    x = 876.75

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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.