Home / 1,311,778.56-1,963,223.61-806,659.47

Finding the Fourth Proportional to 1,311,778.56, 1,963,223.61 and 806,659.47

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Solution

The fourth proportional to 1,311,778.56, 1,963,223.61 and 806,659.47 is: 1,207,256.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,778.56 : 1,963,223.61 = 806,659.47 : x
  2. Step 2: Convert to fraction form
    1,311,778.56/1,963,223.61 = 806,659.47/x
  3. Step 3: Cross multiply
    1,311,778.56x = 1,963,223.61 × 806,659.47
  4. Step 4: Simplify right side
    1,311,778.56x = 1,583,652,916,734.09
  5. Step 5: Solve for x
    x = 1,583,652,916,734.09/1,311,778.56
  6. Step 6: Final answer
    x = 1,207,256.29

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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.