Home / 2,078,139.20-3,115,480.80-880,980.80

Finding the Fourth Proportional to 2,078,139.20, 3,115,480.80 and 880,980.80

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Solution

The fourth proportional to 2,078,139.20, 3,115,480.80 and 880,980.80 is: 1,320,738.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,139.20 : 3,115,480.80 = 880,980.80 : x
  2. Step 2: Convert to fraction form
    2,078,139.20/3,115,480.80 = 880,980.80/x
  3. Step 3: Cross multiply
    2,078,139.20x = 3,115,480.80 × 880,980.80
  4. Step 4: Simplify right side
    2,078,139.20x = 2,744,678,767,568.64
  5. Step 5: Solve for x
    x = 2,744,678,767,568.64/2,078,139.20
  6. Step 6: Final answer
    x = 1,320,738.65

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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.