Home / 820,799.80-1,231,150.86-252,186.37

Finding the Fourth Proportional to 820,799.80, 1,231,150.86 and 252,186.37

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Solution

The fourth proportional to 820,799.80, 1,231,150.86 and 252,186.37 is: 378,264.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,799.80 : 1,231,150.86 = 252,186.37 : x
  2. Step 2: Convert to fraction form
    820,799.80/1,231,150.86 = 252,186.37/x
  3. Step 3: Cross multiply
    820,799.80x = 1,231,150.86 × 252,186.37
  4. Step 4: Simplify right side
    820,799.80x = 310,479,463,227.90
  5. Step 5: Solve for x
    x = 310,479,463,227.90/820,799.80
  6. Step 6: Final answer
    x = 378,264.55

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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.