Home / 2,055,516.80-3,083,121.60-857,129.60

Finding the Fourth Proportional to 2,055,516.80, 3,083,121.60 and 857,129.60

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Solution

The fourth proportional to 2,055,516.80, 3,083,121.60 and 857,129.60 is: 1,285,630.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,055,516.80 : 3,083,121.60 = 857,129.60 : x
  2. Step 2: Convert to fraction form
    2,055,516.80/3,083,121.60 = 857,129.60/x
  3. Step 3: Cross multiply
    2,055,516.80x = 3,083,121.60 × 857,129.60
  4. Step 4: Simplify right side
    2,055,516.80x = 2,642,634,783,759.36
  5. Step 5: Solve for x
    x = 2,642,634,783,759.36/2,055,516.80
  6. Step 6: Final answer
    x = 1,285,630.35

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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.