Home / 764,161.10-1,054,553.27-420,028.85

Finding the Fourth Proportional to 764,161.10, 1,054,553.27 and 420,028.85

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Solution

The fourth proportional to 764,161.10, 1,054,553.27 and 420,028.85 is: 579,645.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,161.10 : 1,054,553.27 = 420,028.85 : x
  2. Step 2: Convert to fraction form
    764,161.10/1,054,553.27 = 420,028.85/x
  3. Step 3: Cross multiply
    764,161.10x = 1,054,553.27 × 420,028.85
  4. Step 4: Simplify right side
    764,161.10x = 442,942,789,888.93
  5. Step 5: Solve for x
    x = 442,942,789,888.93/764,161.10
  6. Step 6: Final answer
    x = 579,645.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.