Home / 764,552.44-1,055,109.44-420,414.56

Finding the Fourth Proportional to 764,552.44, 1,055,109.44 and 420,414.56

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Solution

The fourth proportional to 764,552.44, 1,055,109.44 and 420,414.56 is: 580,186.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,552.44 : 1,055,109.44 = 420,414.56 : x
  2. Step 2: Convert to fraction form
    764,552.44/1,055,109.44 = 420,414.56/x
  3. Step 3: Cross multiply
    764,552.44x = 1,055,109.44 × 420,414.56
  4. Step 4: Simplify right side
    764,552.44x = 443,583,370,969.45
  5. Step 5: Solve for x
    x = 443,583,370,969.45/764,552.44
  6. Step 6: Final answer
    x = 580,186.98

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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.