Home / 1,225,202.20-1,836,603.48-685,721.94

Finding the Fourth Proportional to 1,225,202.20, 1,836,603.48 and 685,721.94

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Solution

The fourth proportional to 1,225,202.20, 1,836,603.48 and 685,721.94 is: 1,027,911.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,202.20 : 1,836,603.48 = 685,721.94 : x
  2. Step 2: Convert to fraction form
    1,225,202.20/1,836,603.48 = 685,721.94/x
  3. Step 3: Cross multiply
    1,225,202.20x = 1,836,603.48 × 685,721.94
  4. Step 4: Simplify right side
    1,225,202.20x = 1,259,399,301,316.35
  5. Step 5: Solve for x
    x = 1,259,399,301,316.35/1,225,202.20
  6. Step 6: Final answer
    x = 1,027,911.39

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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.