Home / 400,680.14-552,921.44-219,388.77

Finding the Fourth Proportional to 400,680.14, 552,921.44 and 219,388.77

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Solution

The fourth proportional to 400,680.14, 552,921.44 and 219,388.77 is: 302,747.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,680.14 : 552,921.44 = 219,388.77 : x
  2. Step 2: Convert to fraction form
    400,680.14/552,921.44 = 219,388.77/x
  3. Step 3: Cross multiply
    400,680.14x = 552,921.44 × 219,388.77
  4. Step 4: Simplify right side
    400,680.14x = 121,304,753,531.29
  5. Step 5: Solve for x
    x = 121,304,753,531.29/400,680.14
  6. Step 6: Final answer
    x = 302,747.11

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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.