Home / 1,397,270.69-1,928,244.21-777,084.54

Finding the Fourth Proportional to 1,397,270.69, 1,928,244.21 and 777,084.54

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Solution

The fourth proportional to 1,397,270.69, 1,928,244.21 and 777,084.54 is: 1,072,382.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,270.69 : 1,928,244.21 = 777,084.54 : x
  2. Step 2: Convert to fraction form
    1,397,270.69/1,928,244.21 = 777,084.54/x
  3. Step 3: Cross multiply
    1,397,270.69x = 1,928,244.21 × 777,084.54
  4. Step 4: Simplify right side
    1,397,270.69x = 1,498,408,751,408.87
  5. Step 5: Solve for x
    x = 1,498,408,751,408.87/1,397,270.69
  6. Step 6: Final answer
    x = 1,072,382.58

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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.