Home / 1,221,376.80-1,832,065.20-1,040,293.20

Finding the Fourth Proportional to 1,221,376.80, 1,832,065.20 and 1,040,293.20

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Solution

The fourth proportional to 1,221,376.80, 1,832,065.20 and 1,040,293.20 is: 1,560,439.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,376.80 : 1,832,065.20 = 1,040,293.20 : x
  2. Step 2: Convert to fraction form
    1,221,376.80/1,832,065.20 = 1,040,293.20/x
  3. Step 3: Cross multiply
    1,221,376.80x = 1,832,065.20 × 1,040,293.20
  4. Step 4: Simplify right side
    1,221,376.80x = 1,905,884,969,516.64
  5. Step 5: Solve for x
    x = 1,905,884,969,516.64/1,221,376.80
  6. Step 6: Final answer
    x = 1,560,439.80

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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.