Home / 1,432,238.97-1,976,450.31-787,659.15

Finding the Fourth Proportional to 1,432,238.97, 1,976,450.31 and 787,659.15

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Solution

The fourth proportional to 1,432,238.97, 1,976,450.31 and 787,659.15 is: 1,086,947.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,238.97 : 1,976,450.31 = 787,659.15 : x
  2. Step 2: Convert to fraction form
    1,432,238.97/1,976,450.31 = 787,659.15/x
  3. Step 3: Cross multiply
    1,432,238.97x = 1,976,450.31 × 787,659.15
  4. Step 4: Simplify right side
    1,432,238.97x = 1,556,769,171,191.84
  5. Step 5: Solve for x
    x = 1,556,769,171,191.84/1,432,238.97
  6. Step 6: Final answer
    x = 1,086,947.92

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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.