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Finding the Fourth Proportional to 799.80, 1,105.23 and 602.97

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Solution

The fourth proportional to 799.80, 1,105.23 and 602.97 is: 833.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    799.80 : 1,105.23 = 602.97 : x
  2. Step 2: Convert to fraction form
    799.80/1,105.23 = 602.97/x
  3. Step 3: Cross multiply
    799.80x = 1,105.23 × 602.97
  4. Step 4: Simplify right side
    799.80x = 666,420.53
  5. Step 5: Solve for x
    x = 666,420.53/799.80
  6. Step 6: Final answer
    x = 833.23

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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.