Home / 1,382,253.66-1,907,519.42-770,445.78

Finding the Fourth Proportional to 1,382,253.66, 1,907,519.42 and 770,445.78

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Solution

The fourth proportional to 1,382,253.66, 1,907,519.42 and 770,445.78 is: 1,063,220.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,253.66 : 1,907,519.42 = 770,445.78 : x
  2. Step 2: Convert to fraction form
    1,382,253.66/1,907,519.42 = 770,445.78/x
  3. Step 3: Cross multiply
    1,382,253.66x = 1,907,519.42 × 770,445.78
  4. Step 4: Simplify right side
    1,382,253.66x = 1,469,640,282,179.96
  5. Step 5: Solve for x
    x = 1,469,640,282,179.96/1,382,253.66
  6. Step 6: Final answer
    x = 1,063,220.39

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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.