Home / 764,997.60-1,055,734.02-425,458.56

Finding the Fourth Proportional to 764,997.60, 1,055,734.02 and 425,458.56

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Solution

The fourth proportional to 764,997.60, 1,055,734.02 and 425,458.56 is: 587,153.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,997.60 : 1,055,734.02 = 425,458.56 : x
  2. Step 2: Convert to fraction form
    764,997.60/1,055,734.02 = 425,458.56/x
  3. Step 3: Cross multiply
    764,997.60x = 1,055,734.02 × 425,458.56
  4. Step 4: Simplify right side
    764,997.60x = 449,171,075,892.21
  5. Step 5: Solve for x
    x = 449,171,075,892.21/764,997.60
  6. Step 6: Final answer
    x = 587,153.58

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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.