Home / 1,311,928.27-1,963,448.54-806,809.64

Finding the Fourth Proportional to 1,311,928.27, 1,963,448.54 and 806,809.64

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Solution

The fourth proportional to 1,311,928.27, 1,963,448.54 and 806,809.64 is: 1,207,481.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,928.27 : 1,963,448.54 = 806,809.64 : x
  2. Step 2: Convert to fraction form
    1,311,928.27/1,963,448.54 = 806,809.64/x
  3. Step 3: Cross multiply
    1,311,928.27x = 1,963,448.54 × 806,809.64
  4. Step 4: Simplify right side
    1,311,928.27x = 1,584,129,195,864.63
  5. Step 5: Solve for x
    x = 1,584,129,195,864.63/1,311,928.27
  6. Step 6: Final answer
    x = 1,207,481.56

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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.