Home / 686,175.39-1,029,339.07-236,845.31

Finding the Fourth Proportional to 686,175.39, 1,029,339.07 and 236,845.31

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Solution

The fourth proportional to 686,175.39, 1,029,339.07 and 236,845.31 is: 355,294.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,175.39 : 1,029,339.07 = 236,845.31 : x
  2. Step 2: Convert to fraction form
    686,175.39/1,029,339.07 = 236,845.31/x
  3. Step 3: Cross multiply
    686,175.39x = 1,029,339.07 × 236,845.31
  4. Step 4: Simplify right side
    686,175.39x = 243,794,125,982.57
  5. Step 5: Solve for x
    x = 243,794,125,982.57/686,175.39
  6. Step 6: Final answer
    x = 355,294.19

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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.