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Finding the Third Proportional to 378,135 and 585,795

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Solution

The third proportional to 378,135 and 585,795 is: 907,495.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,135 : 585,795 = 585,795 : x
  2. Step 2: Convert to fraction form
    378,135/585,795 = 585,795/x
  3. Step 3: Cross multiply
    378,135x = 585,795 × 585,795
  4. Step 4: Simplify right side
    378,135x = 343,155,782,025
  5. Step 5: Solve for x
    x = 343,155,782,025/378,135
  6. Step 6: Final answer
    x = 907,495.42

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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.