Home / 1,220,908.80-1,832,019.30-511,008.60

Finding the Fourth Proportional to 1,220,908.80, 1,832,019.30 and 511,008.60

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Solution

The fourth proportional to 1,220,908.80, 1,832,019.30 and 511,008.60 is: 766,787.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,908.80 : 1,832,019.30 = 511,008.60 : x
  2. Step 2: Convert to fraction form
    1,220,908.80/1,832,019.30 = 511,008.60/x
  3. Step 3: Cross multiply
    1,220,908.80x = 1,832,019.30 × 511,008.60
  4. Step 4: Simplify right side
    1,220,908.80x = 936,177,617,665.98
  5. Step 5: Solve for x
    x = 936,177,617,665.98/1,220,908.80
  6. Step 6: Final answer
    x = 766,787.51

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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.