Home / 821,259.14-1,231,891.74-252,636.30

Finding the Fourth Proportional to 821,259.14, 1,231,891.74 and 252,636.30

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Solution

The fourth proportional to 821,259.14, 1,231,891.74 and 252,636.30 is: 378,955.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,259.14 : 1,231,891.74 = 252,636.30 : x
  2. Step 2: Convert to fraction form
    821,259.14/1,231,891.74 = 252,636.30/x
  3. Step 3: Cross multiply
    821,259.14x = 1,231,891.74 × 252,636.30
  4. Step 4: Simplify right side
    821,259.14x = 311,220,567,167.05
  5. Step 5: Solve for x
    x = 311,220,567,167.05/821,259.14
  6. Step 6: Final answer
    x = 378,955.38

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1.5x scale

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.