Home / 2,740,908.80-4,111,363.20-1,321,108.40

Finding the Fourth Proportional to 2,740,908.80, 4,111,363.20 and 1,321,108.40

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Solution

The fourth proportional to 2,740,908.80, 4,111,363.20 and 1,321,108.40 is: 1,981,662.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740,908.80 : 4,111,363.20 = 1,321,108.40 : x
  2. Step 2: Convert to fraction form
    2,740,908.80/4,111,363.20 = 1,321,108.40/x
  3. Step 3: Cross multiply
    2,740,908.80x = 4,111,363.20 × 1,321,108.40
  4. Step 4: Simplify right side
    2,740,908.80x = 5,431,556,458,970.88
  5. Step 5: Solve for x
    x = 5,431,556,458,970.88/2,740,908.80
  6. Step 6: Final answer
    x = 1,981,662.60

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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.