Home / 427,081.68-589,431.24-245,789.88

Finding the Fourth Proportional to 427,081.68, 589,431.24 and 245,789.88

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Solution

The fourth proportional to 427,081.68, 589,431.24 and 245,789.88 is: 339,223.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,081.68 : 589,431.24 = 245,789.88 : x
  2. Step 2: Convert to fraction form
    427,081.68/589,431.24 = 245,789.88/x
  3. Step 3: Cross multiply
    427,081.68x = 589,431.24 × 245,789.88
  4. Step 4: Simplify right side
    427,081.68x = 144,876,233,747.85
  5. Step 5: Solve for x
    x = 144,876,233,747.85/427,081.68
  6. Step 6: Final answer
    x = 339,223.71

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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.