Home / 400,687.09-552,948.33-219,410.52

Finding the Fourth Proportional to 400,687.09, 552,948.33 and 219,410.52

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Solution

The fourth proportional to 400,687.09, 552,948.33 and 219,410.52 is: 302,786.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,687.09 : 552,948.33 = 219,410.52 : x
  2. Step 2: Convert to fraction form
    400,687.09/552,948.33 = 219,410.52/x
  3. Step 3: Cross multiply
    400,687.09x = 552,948.33 × 219,410.52
  4. Step 4: Simplify right side
    400,687.09x = 121,322,680,618.43
  5. Step 5: Solve for x
    x = 121,322,680,618.43/400,687.09
  6. Step 6: Final answer
    x = 302,786.60

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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.