Home / 725,692.45-1,088,542.15-220,257.81

Finding the Fourth Proportional to 725,692.45, 1,088,542.15 and 220,257.81

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Solution

The fourth proportional to 725,692.45, 1,088,542.15 and 220,257.81 is: 330,387.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,692.45 : 1,088,542.15 = 220,257.81 : x
  2. Step 2: Convert to fraction form
    725,692.45/1,088,542.15 = 220,257.81/x
  3. Step 3: Cross multiply
    725,692.45x = 1,088,542.15 × 220,257.81
  4. Step 4: Simplify right side
    725,692.45x = 239,759,910,051.69
  5. Step 5: Solve for x
    x = 239,759,910,051.69/725,692.45
  6. Step 6: Final answer
    x = 330,387.77

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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.