Home / 820,620.77-1,132,645.64-481,198.37

Finding the Fourth Proportional to 820,620.77, 1,132,645.64 and 481,198.37

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Solution

The fourth proportional to 820,620.77, 1,132,645.64 and 481,198.37 is: 664,164.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,620.77 : 1,132,645.64 = 481,198.37 : x
  2. Step 2: Convert to fraction form
    820,620.77/1,132,645.64 = 481,198.37/x
  3. Step 3: Cross multiply
    820,620.77x = 1,132,645.64 × 481,198.37
  4. Step 4: Simplify right side
    820,620.77x = 545,027,227,686.39
  5. Step 5: Solve for x
    x = 545,027,227,686.39/820,620.77
  6. Step 6: Final answer
    x = 664,164.56

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1.5x scale

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.