Home / 725,073.21-1,087,665.16-219,676.04

Finding the Fourth Proportional to 725,073.21, 1,087,665.16 and 219,676.04

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Solution

The fourth proportional to 725,073.21, 1,087,665.16 and 219,676.04 is: 329,530.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,073.21 : 1,087,665.16 = 219,676.04 : x
  2. Step 2: Convert to fraction form
    725,073.21/1,087,665.16 = 219,676.04/x
  3. Step 3: Cross multiply
    725,073.21x = 1,087,665.16 × 219,676.04
  4. Step 4: Simplify right side
    725,073.21x = 238,933,978,188.52
  5. Step 5: Solve for x
    x = 238,933,978,188.52/725,073.21
  6. Step 6: Final answer
    x = 329,530.83

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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.