Home / 764,983.33-1,055,671.15-420,811.85

Finding the Fourth Proportional to 764,983.33, 1,055,671.15 and 420,811.85

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Solution

The fourth proportional to 764,983.33, 1,055,671.15 and 420,811.85 is: 580,717.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,983.33 : 1,055,671.15 = 420,811.85 : x
  2. Step 2: Convert to fraction form
    764,983.33/1,055,671.15 = 420,811.85/x
  3. Step 3: Cross multiply
    764,983.33x = 1,055,671.15 × 420,811.85
  4. Step 4: Simplify right side
    764,983.33x = 444,238,929,623.13
  5. Step 5: Solve for x
    x = 444,238,929,623.13/764,983.33
  6. Step 6: Final answer
    x = 580,717.14

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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.