Home / 491,619.44-678,447.95-276,767.66

Finding the Fourth Proportional to 491,619.44, 678,447.95 and 276,767.66

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Solution

The fourth proportional to 491,619.44, 678,447.95 and 276,767.66 is: 381,946.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,619.44 : 678,447.95 = 276,767.66 : x
  2. Step 2: Convert to fraction form
    491,619.44/678,447.95 = 276,767.66/x
  3. Step 3: Cross multiply
    491,619.44x = 678,447.95 × 276,767.66
  4. Step 4: Simplify right side
    491,619.44x = 187,772,451,553.30
  5. Step 5: Solve for x
    x = 187,772,451,553.30/491,619.44
  6. Step 6: Final answer
    x = 381,946.76

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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.