Home / 2,758,960.80-4,138,441.20-764,416.80

Finding the Fourth Proportional to 2,758,960.80, 4,138,441.20 and 764,416.80

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Solution

The fourth proportional to 2,758,960.80, 4,138,441.20 and 764,416.80 is: 1,146,625.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758,960.80 : 4,138,441.20 = 764,416.80 : x
  2. Step 2: Convert to fraction form
    2,758,960.80/4,138,441.20 = 764,416.80/x
  3. Step 3: Cross multiply
    2,758,960.80x = 4,138,441.20 × 764,416.80
  4. Step 4: Simplify right side
    2,758,960.80x = 3,163,493,979,092.16
  5. Step 5: Solve for x
    x = 3,163,493,979,092.16/2,758,960.80
  6. Step 6: Final answer
    x = 1,146,625.20

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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.