Home / 764,990.54-1,055,724.36-425,451.50

Finding the Fourth Proportional to 764,990.54, 1,055,724.36 and 425,451.50

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Solution

The fourth proportional to 764,990.54, 1,055,724.36 and 425,451.50 is: 587,143.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,990.54 : 1,055,724.36 = 425,451.50 : x
  2. Step 2: Convert to fraction form
    764,990.54/1,055,724.36 = 425,451.50/x
  3. Step 3: Cross multiply
    764,990.54x = 1,055,724.36 × 425,451.50
  4. Step 4: Simplify right side
    764,990.54x = 449,159,512,548.54
  5. Step 5: Solve for x
    x = 449,159,512,548.54/764,990.54
  6. Step 6: Final answer
    x = 587,143.88

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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.