Home / 840,404.88-1,260,618.26-279,439.38

Finding the Fourth Proportional to 840,404.88, 1,260,618.26 and 279,439.38

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Solution

The fourth proportional to 840,404.88, 1,260,618.26 and 279,439.38 is: 419,162.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,404.88 : 1,260,618.26 = 279,439.38 : x
  2. Step 2: Convert to fraction form
    840,404.88/1,260,618.26 = 279,439.38/x
  3. Step 3: Cross multiply
    840,404.88x = 1,260,618.26 × 279,439.38
  4. Step 4: Simplify right side
    840,404.88x = 352,266,384,991.08
  5. Step 5: Solve for x
    x = 352,266,384,991.08/840,404.88
  6. Step 6: Final answer
    x = 419,162.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.