Home / 491,132.80-677,756.46-276,272.80

Finding the Fourth Proportional to 491,132.80, 677,756.46 and 276,272.80

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Solution

The fourth proportional to 491,132.80, 677,756.46 and 276,272.80 is: 381,252.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,132.80 : 677,756.46 = 276,272.80 : x
  2. Step 2: Convert to fraction form
    491,132.80/677,756.46 = 276,272.80/x
  3. Step 3: Cross multiply
    491,132.80x = 677,756.46 × 276,272.80
  4. Step 4: Simplify right side
    491,132.80x = 187,245,674,922.29
  5. Step 5: Solve for x
    x = 187,245,674,922.29/491,132.80
  6. Step 6: Final answer
    x = 381,252.64

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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.