Home / 412,821.80-619,232.70-132,367.40

Finding the Fourth Proportional to 412,821.80, 619,232.70 and 132,367.40

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Solution

The fourth proportional to 412,821.80, 619,232.70 and 132,367.40 is: 198,551.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,821.80 : 619,232.70 = 132,367.40 : x
  2. Step 2: Convert to fraction form
    412,821.80/619,232.70 = 132,367.40/x
  3. Step 3: Cross multiply
    412,821.80x = 619,232.70 × 132,367.40
  4. Step 4: Simplify right side
    412,821.80x = 81,966,222,493.98
  5. Step 5: Solve for x
    x = 81,966,222,493.98/412,821.80
  6. Step 6: Final answer
    x = 198,551.10

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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.