Home / 491,222.75-677,851.13-276,321.44

Finding the Fourth Proportional to 491,222.75, 677,851.13 and 276,321.44

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Solution

The fourth proportional to 491,222.75, 677,851.13 and 276,321.44 is: 381,303.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,222.75 : 677,851.13 = 276,321.44 : x
  2. Step 2: Convert to fraction form
    491,222.75/677,851.13 = 276,321.44/x
  3. Step 3: Cross multiply
    491,222.75x = 677,851.13 × 276,321.44
  4. Step 4: Simplify right side
    491,222.75x = 187,304,802,732.66
  5. Step 5: Solve for x
    x = 187,304,802,732.66/491,222.75
  6. Step 6: Final answer
    x = 381,303.20

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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.