Home / 821,456.64-1,133,137.08-494,542.26

Finding the Fourth Proportional to 821,456.64, 1,133,137.08 and 494,542.26

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Solution

The fourth proportional to 821,456.64, 1,133,137.08 and 494,542.26 is: 682,183.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,456.64 : 1,133,137.08 = 494,542.26 : x
  2. Step 2: Convert to fraction form
    821,456.64/1,133,137.08 = 494,542.26/x
  3. Step 3: Cross multiply
    821,456.64x = 1,133,137.08 × 494,542.26
  4. Step 4: Simplify right side
    821,456.64x = 560,384,172,433.00
  5. Step 5: Solve for x
    x = 560,384,172,433.00/821,456.64
  6. Step 6: Final answer
    x = 682,183.51

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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.