Home / 820,467.96-1,230,846.39-280,597.32

Finding the Fourth Proportional to 820,467.96, 1,230,846.39 and 280,597.32

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Solution

The fourth proportional to 820,467.96, 1,230,846.39 and 280,597.32 is: 420,945.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,467.96 : 1,230,846.39 = 280,597.32 : x
  2. Step 2: Convert to fraction form
    820,467.96/1,230,846.39 = 280,597.32/x
  3. Step 3: Cross multiply
    820,467.96x = 1,230,846.39 × 280,597.32
  4. Step 4: Simplify right side
    820,467.96x = 345,372,198,365.68
  5. Step 5: Solve for x
    x = 345,372,198,365.68/820,467.96
  6. Step 6: Final answer
    x = 420,945.38

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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.