Home / 2,078,540.80-3,115,478.40-880,259.20

Finding the Fourth Proportional to 2,078,540.80, 3,115,478.40 and 880,259.20

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Solution

The fourth proportional to 2,078,540.80, 3,115,478.40 and 880,259.20 is: 1,319,400.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,540.80 : 3,115,478.40 = 880,259.20 : x
  2. Step 2: Convert to fraction form
    2,078,540.80/3,115,478.40 = 880,259.20/x
  3. Step 3: Cross multiply
    2,078,540.80x = 3,115,478.40 × 880,259.20
  4. Step 4: Simplify right side
    2,078,540.80x = 2,742,428,524,001.28
  5. Step 5: Solve for x
    x = 2,742,428,524,001.28/2,078,540.80
  6. Step 6: Final answer
    x = 1,319,400.86

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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.