Home / 725,249.76-1,088,071.52-219,790.32

Finding the Fourth Proportional to 725,249.76, 1,088,071.52 and 219,790.32

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Solution

The fourth proportional to 725,249.76, 1,088,071.52 and 219,790.32 is: 329,745.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,249.76 : 1,088,071.52 = 219,790.32 : x
  2. Step 2: Convert to fraction form
    725,249.76/1,088,071.52 = 219,790.32/x
  3. Step 3: Cross multiply
    725,249.76x = 1,088,071.52 × 219,790.32
  4. Step 4: Simplify right side
    725,249.76x = 239,147,587,563.69
  5. Step 5: Solve for x
    x = 239,147,587,563.69/725,249.76
  6. Step 6: Final answer
    x = 329,745.15

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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.