Home / 2,479,842.09-3,422,180.75-1,392,115.77

Finding the Fourth Proportional to 2,479,842.09, 3,422,180.75 and 1,392,115.77

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Solution

The fourth proportional to 2,479,842.09, 3,422,180.75 and 1,392,115.77 is: 1,921,119.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479,842.09 : 3,422,180.75 = 1,392,115.77 : x
  2. Step 2: Convert to fraction form
    2,479,842.09/3,422,180.75 = 1,392,115.77/x
  3. Step 3: Cross multiply
    2,479,842.09x = 3,422,180.75 × 1,392,115.77
  4. Step 4: Simplify right side
    2,479,842.09x = 4,764,071,782,904.85
  5. Step 5: Solve for x
    x = 4,764,071,782,904.85/2,479,842.09
  6. Step 6: Final answer
    x = 1,921,119.01

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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.