Home / 818,737.92-1,228,020.48-219,761.28

Finding the Fourth Proportional to 818,737.92, 1,228,020.48 and 219,761.28

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Solution

The fourth proportional to 818,737.92, 1,228,020.48 and 219,761.28 is: 329,618.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,737.92 : 1,228,020.48 = 219,761.28 : x
  2. Step 2: Convert to fraction form
    818,737.92/1,228,020.48 = 219,761.28/x
  3. Step 3: Cross multiply
    818,737.92x = 1,228,020.48 × 219,761.28
  4. Step 4: Simplify right side
    818,737.92x = 269,871,352,551.01
  5. Step 5: Solve for x
    x = 269,871,352,551.01/818,737.92
  6. Step 6: Final answer
    x = 329,618.73

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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.