Home / 479,257.26-661,439.17-304,844.45

Finding the Fourth Proportional to 479,257.26, 661,439.17 and 304,844.45

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Solution

The fourth proportional to 479,257.26, 661,439.17 and 304,844.45 is: 420,726.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,257.26 : 661,439.17 = 304,844.45 : x
  2. Step 2: Convert to fraction form
    479,257.26/661,439.17 = 304,844.45/x
  3. Step 3: Cross multiply
    479,257.26x = 661,439.17 × 304,844.45
  4. Step 4: Simplify right side
    479,257.26x = 201,636,055,917.80
  5. Step 5: Solve for x
    x = 201,636,055,917.80/479,257.26
  6. Step 6: Final answer
    x = 420,726.14

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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.