Home / 491,177.56-677,864.38-276,304.80

Finding the Fourth Proportional to 491,177.56, 677,864.38 and 276,304.80

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Solution

The fourth proportional to 491,177.56, 677,864.38 and 276,304.80 is: 381,322.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,177.56 : 677,864.38 = 276,304.80 : x
  2. Step 2: Convert to fraction form
    491,177.56/677,864.38 = 276,304.80/x
  3. Step 3: Cross multiply
    491,177.56x = 677,864.38 × 276,304.80
  4. Step 4: Simplify right side
    491,177.56x = 187,297,181,943.02
  5. Step 5: Solve for x
    x = 187,297,181,943.02/491,177.56
  6. Step 6: Final answer
    x = 381,322.76

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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.