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Finding the Fourth Proportional to 806.42, 1,206.30 and 737.44

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Solution

The fourth proportional to 806.42, 1,206.30 and 737.44 is: 1,103.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    806.42 : 1,206.30 = 737.44 : x
  2. Step 2: Convert to fraction form
    806.42/1,206.30 = 737.44/x
  3. Step 3: Cross multiply
    806.42x = 1,206.30 × 737.44
  4. Step 4: Simplify right side
    806.42x = 889,573.87
  5. Step 5: Solve for x
    x = 889,573.87/806.42
  6. Step 6: Final answer
    x = 1,103.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.