Home / 491,181.05-677,828.70-276,321.06

Finding the Fourth Proportional to 491,181.05, 677,828.70 and 276,321.06

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Solution

The fourth proportional to 491,181.05, 677,828.70 and 276,321.06 is: 381,322.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,181.05 : 677,828.70 = 276,321.06 : x
  2. Step 2: Convert to fraction form
    491,181.05/677,828.70 = 276,321.06/x
  3. Step 3: Cross multiply
    491,181.05x = 677,828.70 × 276,321.06
  4. Step 4: Simplify right side
    491,181.05x = 187,298,344,882.42
  5. Step 5: Solve for x
    x = 187,298,344,882.42/491,181.05
  6. Step 6: Final answer
    x = 381,322.42

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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.