Home / 2,811,238.39-4,216,857.49-681,322.51

Finding the Fourth Proportional to 2,811,238.39, 4,216,857.49 and 681,322.51

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Solution

The fourth proportional to 2,811,238.39, 4,216,857.49 and 681,322.51 is: 1,021,983.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811,238.39 : 4,216,857.49 = 681,322.51 : x
  2. Step 2: Convert to fraction form
    2,811,238.39/4,216,857.49 = 681,322.51/x
  3. Step 3: Cross multiply
    2,811,238.39x = 4,216,857.49 × 681,322.51
  4. Step 4: Simplify right side
    2,811,238.39x = 2,873,039,929,399.10
  5. Step 5: Solve for x
    x = 2,873,039,929,399.10/2,811,238.39
  6. Step 6: Final answer
    x = 1,021,983.74

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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.