Home / 2,909,212.80-4,361,790.42-1,289,100.48

Finding the Fourth Proportional to 2,909,212.80, 4,361,790.42 and 1,289,100.48

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Solution

The fourth proportional to 2,909,212.80, 4,361,790.42 and 1,289,100.48 is: 1,932,751.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909,212.80 : 4,361,790.42 = 1,289,100.48 : x
  2. Step 2: Convert to fraction form
    2,909,212.80/4,361,790.42 = 1,289,100.48/x
  3. Step 3: Cross multiply
    2,909,212.80x = 4,361,790.42 × 1,289,100.48
  4. Step 4: Simplify right side
    2,909,212.80x = 5,622,786,124,081.40
  5. Step 5: Solve for x
    x = 5,622,786,124,081.40/2,909,212.80
  6. Step 6: Final answer
    x = 1,932,751.75

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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.