Home / 2,141,750.82-3,212,637.31-721,819.20

Finding the Fourth Proportional to 2,141,750.82, 3,212,637.31 and 721,819.20

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Solution

The fourth proportional to 2,141,750.82, 3,212,637.31 and 721,819.20 is: 1,082,732.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,141,750.82 : 3,212,637.31 = 721,819.20 : x
  2. Step 2: Convert to fraction form
    2,141,750.82/3,212,637.31 = 721,819.20/x
  3. Step 3: Cross multiply
    2,141,750.82x = 3,212,637.31 × 721,819.20
  4. Step 4: Simplify right side
    2,141,750.82x = 2,318,943,289,903.12
  5. Step 5: Solve for x
    x = 2,318,943,289,903.12/2,141,750.82
  6. Step 6: Final answer
    x = 1,082,732.53

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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.