Home / 2,719,939.40-4,079,909.10-1,121,971.40

Finding the Fourth Proportional to 2,719,939.40, 4,079,909.10 and 1,121,971.40

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Solution

The fourth proportional to 2,719,939.40, 4,079,909.10 and 1,121,971.40 is: 1,682,957.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719,939.40 : 4,079,909.10 = 1,121,971.40 : x
  2. Step 2: Convert to fraction form
    2,719,939.40/4,079,909.10 = 1,121,971.40/x
  3. Step 3: Cross multiply
    2,719,939.40x = 4,079,909.10 × 1,121,971.40
  4. Step 4: Simplify right side
    2,719,939.40x = 4,577,541,324,799.74
  5. Step 5: Solve for x
    x = 4,577,541,324,799.74/2,719,939.40
  6. Step 6: Final answer
    x = 1,682,957.10

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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.