Home / 1,382,020.09-1,907,161.81-770,159.39

Finding the Fourth Proportional to 1,382,020.09, 1,907,161.81 and 770,159.39

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Solution

The fourth proportional to 1,382,020.09, 1,907,161.81 and 770,159.39 is: 1,062,805.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,020.09 : 1,907,161.81 = 770,159.39 : x
  2. Step 2: Convert to fraction form
    1,382,020.09/1,907,161.81 = 770,159.39/x
  3. Step 3: Cross multiply
    1,382,020.09x = 1,907,161.81 × 770,159.39
  4. Step 4: Simplify right side
    1,382,020.09x = 1,468,818,576,220.90
  5. Step 5: Solve for x
    x = 1,468,818,576,220.90/1,382,020.09
  6. Step 6: Final answer
    x = 1,062,805.52

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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.