Home / 426,491.89-639,738.66-110,948.29

Finding the Fourth Proportional to 426,491.89, 639,738.66 and 110,948.29

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Solution

The fourth proportional to 426,491.89, 639,738.66 and 110,948.29 is: 166,422.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,491.89 : 639,738.66 = 110,948.29 : x
  2. Step 2: Convert to fraction form
    426,491.89/639,738.66 = 110,948.29/x
  3. Step 3: Cross multiply
    426,491.89x = 639,738.66 × 110,948.29
  4. Step 4: Simplify right side
    426,491.89x = 70,977,910,373.89
  5. Step 5: Solve for x
    x = 70,977,910,373.89/426,491.89
  6. Step 6: Final answer
    x = 166,422.65

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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.