Home / 685,844.33-1,029,430.49-331,107.26

Finding the Fourth Proportional to 685,844.33, 1,029,430.49 and 331,107.26

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Solution

The fourth proportional to 685,844.33, 1,029,430.49 and 331,107.26 is: 496,981.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,844.33 : 1,029,430.49 = 331,107.26 : x
  2. Step 2: Convert to fraction form
    685,844.33/1,029,430.49 = 331,107.26/x
  3. Step 3: Cross multiply
    685,844.33x = 1,029,430.49 × 331,107.26
  4. Step 4: Simplify right side
    685,844.33x = 340,851,902,101.67
  5. Step 5: Solve for x
    x = 340,851,902,101.67/685,844.33
  6. Step 6: Final answer
    x = 496,981.44

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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.