Home / 1,223.74-1,836.06-443.80

Finding the Fourth Proportional to 1,223.74, 1,836.06 and 443.80

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Solution

The fourth proportional to 1,223.74, 1,836.06 and 443.80 is: 665.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223.74 : 1,836.06 = 443.80 : x
  2. Step 2: Convert to fraction form
    1,223.74/1,836.06 = 443.80/x
  3. Step 3: Cross multiply
    1,223.74x = 1,836.06 × 443.80
  4. Step 4: Simplify right side
    1,223.74x = 814,843.43
  5. Step 5: Solve for x
    x = 814,843.43/1,223.74
  6. Step 6: Final answer
    x = 665.86

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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.