Home / 764,619.50-1,055,176.18-425,087.76

Finding the Fourth Proportional to 764,619.50, 1,055,176.18 and 425,087.76

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Solution

The fourth proportional to 764,619.50, 1,055,176.18 and 425,087.76 is: 586,621.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,619.50 : 1,055,176.18 = 425,087.76 : x
  2. Step 2: Convert to fraction form
    764,619.50/1,055,176.18 = 425,087.76/x
  3. Step 3: Cross multiply
    764,619.50x = 1,055,176.18 × 425,087.76
  4. Step 4: Simplify right side
    764,619.50x = 448,542,478,761.56
  5. Step 5: Solve for x
    x = 448,542,478,761.56/764,619.50
  6. Step 6: Final answer
    x = 586,621.81

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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.