Home / 1,225,202.45-1,836,603.86-685,722.20

Finding the Fourth Proportional to 1,225,202.45, 1,836,603.86 and 685,722.20

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Solution

The fourth proportional to 1,225,202.45, 1,836,603.86 and 685,722.20 is: 1,027,911.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,202.45 : 1,836,603.86 = 685,722.20 : x
  2. Step 2: Convert to fraction form
    1,225,202.45/1,836,603.86 = 685,722.20/x
  3. Step 3: Cross multiply
    1,225,202.45x = 1,836,603.86 × 685,722.20
  4. Step 4: Simplify right side
    1,225,202.45x = 1,259,400,026,796.06
  5. Step 5: Solve for x
    x = 1,259,400,026,796.06/1,225,202.45
  6. Step 6: Final answer
    x = 1,027,911.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.