Home / 725,511.40-1,088,269.63-220,076.73

Finding the Fourth Proportional to 725,511.40, 1,088,269.63 and 220,076.73

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Solution

The fourth proportional to 725,511.40, 1,088,269.63 and 220,076.73 is: 330,115.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,511.40 : 1,088,269.63 = 220,076.73 : x
  2. Step 2: Convert to fraction form
    725,511.40/1,088,269.63 = 220,076.73/x
  3. Step 3: Cross multiply
    725,511.40x = 1,088,269.63 × 220,076.73
  4. Step 4: Simplify right side
    725,511.40x = 239,502,820,978.52
  5. Step 5: Solve for x
    x = 239,502,820,978.52/725,511.40
  6. Step 6: Final answer
    x = 330,115.86

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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.