Home / 1,215,112.80-1,822,320.90-362,148.78

Finding the Fourth Proportional to 1,215,112.80, 1,822,320.90 and 362,148.78

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Solution

The fourth proportional to 1,215,112.80, 1,822,320.90 and 362,148.78 is: 543,119.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,112.80 : 1,822,320.90 = 362,148.78 : x
  2. Step 2: Convert to fraction form
    1,215,112.80/1,822,320.90 = 362,148.78/x
  3. Step 3: Cross multiply
    1,215,112.80x = 1,822,320.90 × 362,148.78
  4. Step 4: Simplify right side
    1,215,112.80x = 659,951,290,703.50
  5. Step 5: Solve for x
    x = 659,951,290,703.50/1,215,112.80
  6. Step 6: Final answer
    x = 543,119.36

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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.