Home / 2,105,851.57-3,158,777.45-685,907.60

Finding the Fourth Proportional to 2,105,851.57, 3,158,777.45 and 685,907.60

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Solution

The fourth proportional to 2,105,851.57, 3,158,777.45 and 685,907.60 is: 1,028,861.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,851.57 : 3,158,777.45 = 685,907.60 : x
  2. Step 2: Convert to fraction form
    2,105,851.57/3,158,777.45 = 685,907.60/x
  3. Step 3: Cross multiply
    2,105,851.57x = 3,158,777.45 × 685,907.60
  4. Step 4: Simplify right side
    2,105,851.57x = 2,166,629,445,584.50
  5. Step 5: Solve for x
    x = 2,166,629,445,584.50/2,105,851.57
  6. Step 6: Final answer
    x = 1,028,861.43

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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.