Home / 490,992.03-677,489.80-276,119.28

Finding the Fourth Proportional to 490,992.03, 677,489.80 and 276,119.28

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Solution

The fourth proportional to 490,992.03, 677,489.80 and 276,119.28 is: 381,000.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,992.03 : 677,489.80 = 276,119.28 : x
  2. Step 2: Convert to fraction form
    490,992.03/677,489.80 = 276,119.28/x
  3. Step 3: Cross multiply
    490,992.03x = 677,489.80 × 276,119.28
  4. Step 4: Simplify right side
    490,992.03x = 187,067,992,741.04
  5. Step 5: Solve for x
    x = 187,067,992,741.04/490,992.03
  6. Step 6: Final answer
    x = 381,000.06

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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.