Home / 2,146,715.78-3,220,481.92-726,390.50

Finding the Fourth Proportional to 2,146,715.78, 3,220,481.92 and 726,390.50

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Solution

The fourth proportional to 2,146,715.78, 3,220,481.92 and 726,390.50 is: 1,089,723.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146,715.78 : 3,220,481.92 = 726,390.50 : x
  2. Step 2: Convert to fraction form
    2,146,715.78/3,220,481.92 = 726,390.50/x
  3. Step 3: Cross multiply
    2,146,715.78x = 3,220,481.92 × 726,390.50
  4. Step 4: Simplify right side
    2,146,715.78x = 2,339,327,472,109.76
  5. Step 5: Solve for x
    x = 2,339,327,472,109.76/2,146,715.78
  6. Step 6: Final answer
    x = 1,089,723.89

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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.