Home / 764,605.90-1,055,183.25-420,468.00

Finding the Fourth Proportional to 764,605.90, 1,055,183.25 and 420,468.00

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Solution

The fourth proportional to 764,605.90, 1,055,183.25 and 420,468.00 is: 580,260.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,605.90 : 1,055,183.25 = 420,468.00 : x
  2. Step 2: Convert to fraction form
    764,605.90/1,055,183.25 = 420,468.00/x
  3. Step 3: Cross multiply
    764,605.90x = 1,055,183.25 × 420,468.00
  4. Step 4: Simplify right side
    764,605.90x = 443,670,785,485.08
  5. Step 5: Solve for x
    x = 443,670,785,485.08/764,605.90
  6. Step 6: Final answer
    x = 580,260.74

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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.