Home / 1,244.24-1,717.60-824.80

Finding the Fourth Proportional to 1,244.24, 1,717.60 and 824.80

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Solution

The fourth proportional to 1,244.24, 1,717.60 and 824.80 is: 1,138.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.24 : 1,717.60 = 824.80 : x
  2. Step 2: Convert to fraction form
    1,244.24/1,717.60 = 824.80/x
  3. Step 3: Cross multiply
    1,244.24x = 1,717.60 × 824.80
  4. Step 4: Simplify right side
    1,244.24x = 1,416,676.48
  5. Step 5: Solve for x
    x = 1,416,676.48/1,244.24
  6. Step 6: Final answer
    x = 1,138.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.