Home / 764,120.87-1,054,510.52-419,950.54

Finding the Fourth Proportional to 764,120.87, 1,054,510.52 and 419,950.54

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Solution

The fourth proportional to 764,120.87, 1,054,510.52 and 419,950.54 is: 579,544.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,120.87 : 1,054,510.52 = 419,950.54 : x
  2. Step 2: Convert to fraction form
    764,120.87/1,054,510.52 = 419,950.54/x
  3. Step 3: Cross multiply
    764,120.87x = 1,054,510.52 × 419,950.54
  4. Step 4: Simplify right side
    764,120.87x = 442,842,262,309.68
  5. Step 5: Solve for x
    x = 442,842,262,309.68/764,120.87
  6. Step 6: Final answer
    x = 579,544.78

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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.