Home / 911,102.06-1,365,682.29-685,765.73

Finding the Fourth Proportional to 911,102.06, 1,365,682.29 and 685,765.73

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Solution

The fourth proportional to 911,102.06, 1,365,682.29 and 685,765.73 is: 1,027,917.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,102.06 : 1,365,682.29 = 685,765.73 : x
  2. Step 2: Convert to fraction form
    911,102.06/1,365,682.29 = 685,765.73/x
  3. Step 3: Cross multiply
    911,102.06x = 1,365,682.29 × 685,765.73
  4. Step 4: Simplify right side
    911,102.06x = 936,538,105,721.51
  5. Step 5: Solve for x
    x = 936,538,105,721.51/911,102.06
  6. Step 6: Final answer
    x = 1,027,917.89

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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.