Home / 764,604.90-1,055,181.87-420,467.00

Finding the Fourth Proportional to 764,604.90, 1,055,181.87 and 420,467.00

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Solution

The fourth proportional to 764,604.90, 1,055,181.87 and 420,467.00 is: 580,259.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,604.90 : 1,055,181.87 = 420,467.00 : x
  2. Step 2: Convert to fraction form
    764,604.90/1,055,181.87 = 420,467.00/x
  3. Step 3: Cross multiply
    764,604.90x = 1,055,181.87 × 420,467.00
  4. Step 4: Simplify right side
    764,604.90x = 443,669,150,057.38
  5. Step 5: Solve for x
    x = 443,669,150,057.38/764,604.90
  6. Step 6: Final answer
    x = 580,259.36

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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.