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Finding the Third Proportional to 378,399.50 and 585,959.50

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Solution

The third proportional to 378,399.50 and 585,959.50 is: 907,370.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,399.50 : 585,959.50 = 585,959.50 : x
  2. Step 2: Convert to fraction form
    378,399.50/585,959.50 = 585,959.50/x
  3. Step 3: Cross multiply
    378,399.50x = 585,959.50 × 585,959.50
  4. Step 4: Simplify right side
    378,399.50x = 343,348,535,640.25
  5. Step 5: Solve for x
    x = 343,348,535,640.25/378,399.50
  6. Step 6: Final answer
    x = 907,370.48

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.