Home / 821,259.08-1,231,891.64-252,636.24

Finding the Fourth Proportional to 821,259.08, 1,231,891.64 and 252,636.24

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Solution

The fourth proportional to 821,259.08, 1,231,891.64 and 252,636.24 is: 378,955.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,259.08 : 1,231,891.64 = 252,636.24 : x
  2. Step 2: Convert to fraction form
    821,259.08/1,231,891.64 = 252,636.24/x
  3. Step 3: Cross multiply
    821,259.08x = 1,231,891.64 × 252,636.24
  4. Step 4: Simplify right side
    821,259.08x = 311,220,465,857.58
  5. Step 5: Solve for x
    x = 311,220,465,857.58/821,259.08
  6. Step 6: Final answer
    x = 378,955.28

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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.