Home / 490,939.80-677,417.88-276,067.06

Finding the Fourth Proportional to 490,939.80, 677,417.88 and 276,067.06

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Solution

The fourth proportional to 490,939.80, 677,417.88 and 276,067.06 is: 380,928.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,939.80 : 677,417.88 = 276,067.06 : x
  2. Step 2: Convert to fraction form
    490,939.80/677,417.88 = 276,067.06/x
  3. Step 3: Cross multiply
    490,939.80x = 677,417.88 × 276,067.06
  4. Step 4: Simplify right side
    490,939.80x = 187,012,762,523.03
  5. Step 5: Solve for x
    x = 187,012,762,523.03/490,939.80
  6. Step 6: Final answer
    x = 380,928.09

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1.5x scale

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.