Home / 1,212,720-1,673,530.92-668,906.52

Finding the Fourth Proportional to 1,212,720, 1,673,530.92 and 668,906.52

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Solution

The fourth proportional to 1,212,720, 1,673,530.92 and 668,906.52 is: 923,078.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,720 : 1,673,530.92 = 668,906.52 : x
  2. Step 2: Convert to fraction form
    1,212,720/1,673,530.92 = 668,906.52/x
  3. Step 3: Cross multiply
    1,212,720x = 1,673,530.92 × 668,906.52
  4. Step 4: Simplify right side
    1,212,720x = 1,119,435,743,809.60
  5. Step 5: Solve for x
    x = 1,119,435,743,809.60/1,212,720
  6. Step 6: Final answer
    x = 923,078.49

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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.