Home / 2,560,477.76-3,840,667.20-764,578.08

Finding the Fourth Proportional to 2,560,477.76, 3,840,667.20 and 764,578.08

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Solution

The fourth proportional to 2,560,477.76, 3,840,667.20 and 764,578.08 is: 1,146,852.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,560,477.76 : 3,840,667.20 = 764,578.08 : x
  2. Step 2: Convert to fraction form
    2,560,477.76/3,840,667.20 = 764,578.08/x
  3. Step 3: Cross multiply
    2,560,477.76x = 3,840,667.20 × 764,578.08
  4. Step 4: Simplify right side
    2,560,477.76x = 2,936,489,953,694.98
  5. Step 5: Solve for x
    x = 2,936,489,953,694.98/2,560,477.76
  6. Step 6: Final answer
    x = 1,146,852.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.