Home / 764,843.37-1,055,566.53-478,455.72

Finding the Fourth Proportional to 764,843.37, 1,055,566.53 and 478,455.72

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Solution

The fourth proportional to 764,843.37, 1,055,566.53 and 478,455.72 is: 660,320.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,843.37 : 1,055,566.53 = 478,455.72 : x
  2. Step 2: Convert to fraction form
    764,843.37/1,055,566.53 = 478,455.72/x
  3. Step 3: Cross multiply
    764,843.37x = 1,055,566.53 × 478,455.72
  4. Step 4: Simplify right side
    764,843.37x = 505,041,844,119.05
  5. Step 5: Solve for x
    x = 505,041,844,119.05/764,843.37
  6. Step 6: Final answer
    x = 660,320.61

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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.