Home / 1,382,164.31-1,907,396.21-770,356.49

Finding the Fourth Proportional to 1,382,164.31, 1,907,396.21 and 770,356.49

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Solution

The fourth proportional to 1,382,164.31, 1,907,396.21 and 770,356.49 is: 1,063,097.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,164.31 : 1,907,396.21 = 770,356.49 : x
  2. Step 2: Convert to fraction form
    1,382,164.31/1,907,396.21 = 770,356.49/x
  3. Step 3: Cross multiply
    1,382,164.31x = 1,907,396.21 × 770,356.49
  4. Step 4: Simplify right side
    1,382,164.31x = 1,469,375,035,986.14
  5. Step 5: Solve for x
    x = 1,469,375,035,986.14/1,382,164.31
  6. Step 6: Final answer
    x = 1,063,097.22

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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.