Home / 1,320,481.85-1,822,272.39-776,640.56

Finding the Fourth Proportional to 1,320,481.85, 1,822,272.39 and 776,640.56

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Solution

The fourth proportional to 1,320,481.85, 1,822,272.39 and 776,640.56 is: 1,071,768.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,481.85 : 1,822,272.39 = 776,640.56 : x
  2. Step 2: Convert to fraction form
    1,320,481.85/1,822,272.39 = 776,640.56/x
  3. Step 3: Cross multiply
    1,320,481.85x = 1,822,272.39 × 776,640.56
  4. Step 4: Simplify right side
    1,320,481.85x = 1,415,250,640,330.78
  5. Step 5: Solve for x
    x = 1,415,250,640,330.78/1,320,481.85
  6. Step 6: Final answer
    x = 1,071,768.34

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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.