Home / 854,323.70-1,179,749.49-685,791.86

Finding the Fourth Proportional to 854,323.70, 1,179,749.49 and 685,791.86

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Solution

The fourth proportional to 854,323.70, 1,179,749.49 and 685,791.86 is: 947,021.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,323.70 : 1,179,749.49 = 685,791.86 : x
  2. Step 2: Convert to fraction form
    854,323.70/1,179,749.49 = 685,791.86/x
  3. Step 3: Cross multiply
    854,323.70x = 1,179,749.49 × 685,791.86
  4. Step 4: Simplify right side
    854,323.70x = 809,062,597,081.15
  5. Step 5: Solve for x
    x = 809,062,597,081.15/854,323.70
  6. Step 6: Final answer
    x = 947,021.13

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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.