Home / 2,155,718.80-3,231,504.60-1,675,680.40

Finding the Fourth Proportional to 2,155,718.80, 3,231,504.60 and 1,675,680.40

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Solution

The fourth proportional to 2,155,718.80, 3,231,504.60 and 1,675,680.40 is: 2,511,908.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,718.80 : 3,231,504.60 = 1,675,680.40 : x
  2. Step 2: Convert to fraction form
    2,155,718.80/3,231,504.60 = 1,675,680.40/x
  3. Step 3: Cross multiply
    2,155,718.80x = 3,231,504.60 × 1,675,680.40
  4. Step 4: Simplify right side
    2,155,718.80x = 5,414,968,920,729.84
  5. Step 5: Solve for x
    x = 5,414,968,920,729.84/2,155,718.80
  6. Step 6: Final answer
    x = 2,511,908.75

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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.