Home / 821,244-1,231,869.06-252,621.30

Finding the Fourth Proportional to 821,244, 1,231,869.06 and 252,621.30

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Solution

The fourth proportional to 821,244, 1,231,869.06 and 252,621.30 is: 378,932.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,244 : 1,231,869.06 = 252,621.30 : x
  2. Step 2: Convert to fraction form
    821,244/1,231,869.06 = 252,621.30/x
  3. Step 3: Cross multiply
    821,244x = 1,231,869.06 × 252,621.30
  4. Step 4: Simplify right side
    821,244x = 311,196,363,366.98
  5. Step 5: Solve for x
    x = 311,196,363,366.98/821,244
  6. Step 6: Final answer
    x = 378,932.89

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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.