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Finding the Fourth Proportional to 805.97, 1,199.29 and 803.23

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Solution

The fourth proportional to 805.97, 1,199.29 and 803.23 is: 1,195.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    805.97 : 1,199.29 = 803.23 : x
  2. Step 2: Convert to fraction form
    805.97/1,199.29 = 803.23/x
  3. Step 3: Cross multiply
    805.97x = 1,199.29 × 803.23
  4. Step 4: Simplify right side
    805.97x = 963,305.71
  5. Step 5: Solve for x
    x = 963,305.71/805.97
  6. Step 6: Final answer
    x = 1,195.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.