Home / 2,078,721.80-3,115,749.90-1,180,593.80

Finding the Fourth Proportional to 2,078,721.80, 3,115,749.90 and 1,180,593.80

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Solution

The fourth proportional to 2,078,721.80, 3,115,749.90 and 1,180,593.80 is: 1,769,565.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,721.80 : 3,115,749.90 = 1,180,593.80 : x
  2. Step 2: Convert to fraction form
    2,078,721.80/3,115,749.90 = 1,180,593.80/x
  3. Step 3: Cross multiply
    2,078,721.80x = 3,115,749.90 × 1,180,593.80
  4. Step 4: Simplify right side
    2,078,721.80x = 3,678,435,014,290.62
  5. Step 5: Solve for x
    x = 3,678,435,014,290.62/2,078,721.80
  6. Step 6: Final answer
    x = 1,769,565.80

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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.