Home / 764,704.01-1,055,318.62-420,566.54

Finding the Fourth Proportional to 764,704.01, 1,055,318.62 and 420,566.54

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Solution

The fourth proportional to 764,704.01, 1,055,318.62 and 420,566.54 is: 580,396.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,704.01 : 1,055,318.62 = 420,566.54 : x
  2. Step 2: Convert to fraction form
    764,704.01/1,055,318.62 = 420,566.54/x
  3. Step 3: Cross multiply
    764,704.01x = 1,055,318.62 × 420,566.54
  4. Step 4: Simplify right side
    764,704.01x = 443,831,700,610.98
  5. Step 5: Solve for x
    x = 443,831,700,610.98/764,704.01
  6. Step 6: Final answer
    x = 580,396.73

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1.5x scale

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.