Home / 2,311,407.90-3,189,662.28-1,278,899.28

Finding the Fourth Proportional to 2,311,407.90, 3,189,662.28 and 1,278,899.28

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Solution

The fourth proportional to 2,311,407.90, 3,189,662.28 and 1,278,899.28 is: 1,764,836.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311,407.90 : 3,189,662.28 = 1,278,899.28 : x
  2. Step 2: Convert to fraction form
    2,311,407.90/3,189,662.28 = 1,278,899.28/x
  3. Step 3: Cross multiply
    2,311,407.90x = 3,189,662.28 × 1,278,899.28
  4. Step 4: Simplify right side
    2,311,407.90x = 4,079,256,793,335.16
  5. Step 5: Solve for x
    x = 4,079,256,793,335.16/2,311,407.90
  6. Step 6: Final answer
    x = 1,764,836.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.