Home / 2,748,062.78-4,122,129.23-726,289.21

Finding the Fourth Proportional to 2,748,062.78, 4,122,129.23 and 726,289.21

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Solution

The fourth proportional to 2,748,062.78, 4,122,129.23 and 726,289.21 is: 1,089,443.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748,062.78 : 4,122,129.23 = 726,289.21 : x
  2. Step 2: Convert to fraction form
    2,748,062.78/4,122,129.23 = 726,289.21/x
  3. Step 3: Cross multiply
    2,748,062.78x = 4,122,129.23 × 726,289.21
  4. Step 4: Simplify right side
    2,748,062.78x = 2,993,857,981,974.61
  5. Step 5: Solve for x
    x = 2,993,857,981,974.61/2,748,062.78
  6. Step 6: Final answer
    x = 1,089,443.08

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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.