Home / 2,100,028.20-3,150,503.10-679,842.60

Finding the Fourth Proportional to 2,100,028.20, 3,150,503.10 and 679,842.60

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Solution

The fourth proportional to 2,100,028.20, 3,150,503.10 and 679,842.60 is: 1,019,913.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100,028.20 : 3,150,503.10 = 679,842.60 : x
  2. Step 2: Convert to fraction form
    2,100,028.20/3,150,503.10 = 679,842.60/x
  3. Step 3: Cross multiply
    2,100,028.20x = 3,150,503.10 × 679,842.60
  4. Step 4: Simplify right side
    2,100,028.20x = 2,141,846,218,812.06
  5. Step 5: Solve for x
    x = 2,141,846,218,812.06/2,100,028.20
  6. Step 6: Final answer
    x = 1,019,913.07

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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.