Home / 764,817.24-1,055,404.44-425,278.20

Finding the Fourth Proportional to 764,817.24, 1,055,404.44 and 425,278.20

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Solution

The fourth proportional to 764,817.24, 1,055,404.44 and 425,278.20 is: 586,859.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,817.24 : 1,055,404.44 = 425,278.20 : x
  2. Step 2: Convert to fraction form
    764,817.24/1,055,404.44 = 425,278.20/x
  3. Step 3: Cross multiply
    764,817.24x = 1,055,404.44 × 425,278.20
  4. Step 4: Simplify right side
    764,817.24x = 448,840,500,515.21
  5. Step 5: Solve for x
    x = 448,840,500,515.21/764,817.24
  6. Step 6: Final answer
    x = 586,859.81

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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.