Home / 1,192,139.32-1,645,195.54-682,940.12

Finding the Fourth Proportional to 1,192,139.32, 1,645,195.54 and 682,940.12

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Solution

The fourth proportional to 1,192,139.32, 1,645,195.54 and 682,940.12 is: 942,482.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,139.32 : 1,645,195.54 = 682,940.12 : x
  2. Step 2: Convert to fraction form
    1,192,139.32/1,645,195.54 = 682,940.12/x
  3. Step 3: Cross multiply
    1,192,139.32x = 1,645,195.54 × 682,940.12
  4. Step 4: Simplify right side
    1,192,139.32x = 1,123,570,039,511.06
  5. Step 5: Solve for x
    x = 1,123,570,039,511.06/1,192,139.32
  6. Step 6: Final answer
    x = 942,482.16

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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.