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Finding the Fourth Proportional to 805.93, 1,199.27 and 803.20

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Solution

The fourth proportional to 805.93, 1,199.27 and 803.20 is: 1,195.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    805.93 : 1,199.27 = 803.20 : x
  2. Step 2: Convert to fraction form
    805.93/1,199.27 = 803.20/x
  3. Step 3: Cross multiply
    805.93x = 1,199.27 × 803.20
  4. Step 4: Simplify right side
    805.93x = 963,253.66
  5. Step 5: Solve for x
    x = 963,253.66/805.93
  6. Step 6: Final answer
    x = 1,195.21

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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.