Home / 449,629.22-674,488.67-129,788.84

Finding the Fourth Proportional to 449,629.22, 674,488.67 and 129,788.84

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Solution

The fourth proportional to 449,629.22, 674,488.67 and 129,788.84 is: 194,696.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,629.22 : 674,488.67 = 129,788.84 : x
  2. Step 2: Convert to fraction form
    449,629.22/674,488.67 = 129,788.84/x
  3. Step 3: Cross multiply
    449,629.22x = 674,488.67 × 129,788.84
  4. Step 4: Simplify right side
    449,629.22x = 87,541,102,072.44
  5. Step 5: Solve for x
    x = 87,541,102,072.44/449,629.22
  6. Step 6: Final answer
    x = 194,696.20

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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.