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Finding the Fourth Proportional to 746.27, 1,119.41 and 283.94

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Solution

The fourth proportional to 746.27, 1,119.41 and 283.94 is: 425.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    746.27 : 1,119.41 = 283.94 : x
  2. Step 2: Convert to fraction form
    746.27/1,119.41 = 283.94/x
  3. Step 3: Cross multiply
    746.27x = 1,119.41 × 283.94
  4. Step 4: Simplify right side
    746.27x = 317,843.86
  5. Step 5: Solve for x
    x = 317,843.86/746.27
  6. Step 6: Final answer
    x = 425.91

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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.