Home / 1,107,422.91-1,661,341.32-762,660.36

Finding the Fourth Proportional to 1,107,422.91, 1,661,341.32 and 762,660.36

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Solution

The fourth proportional to 1,107,422.91, 1,661,341.32 and 762,660.36 is: 1,144,133.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,422.91 : 1,661,341.32 = 762,660.36 : x
  2. Step 2: Convert to fraction form
    1,107,422.91/1,661,341.32 = 762,660.36/x
  3. Step 3: Cross multiply
    1,107,422.91x = 1,661,341.32 × 762,660.36
  4. Step 4: Simplify right side
    1,107,422.91x = 1,267,039,169,194.08
  5. Step 5: Solve for x
    x = 1,267,039,169,194.08/1,107,422.91
  6. Step 6: Final answer
    x = 1,144,133.07

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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.