Home / 764,121.87-1,054,511.90-419,951.54

Finding the Fourth Proportional to 764,121.87, 1,054,511.90 and 419,951.54

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Solution

The fourth proportional to 764,121.87, 1,054,511.90 and 419,951.54 is: 579,546.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,121.87 : 1,054,511.90 = 419,951.54 : x
  2. Step 2: Convert to fraction form
    764,121.87/1,054,511.90 = 419,951.54/x
  3. Step 3: Cross multiply
    764,121.87x = 1,054,511.90 × 419,951.54
  4. Step 4: Simplify right side
    764,121.87x = 442,843,896,353.33
  5. Step 5: Solve for x
    x = 442,843,896,353.33/764,121.87
  6. Step 6: Final answer
    x = 579,546.16

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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.