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Finding the Third Proportional to 378,126 and 585,778.50

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Solution

The third proportional to 378,126 and 585,778.50 is: 907,465.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,126 : 585,778.50 = 585,778.50 : x
  2. Step 2: Convert to fraction form
    378,126/585,778.50 = 585,778.50/x
  3. Step 3: Cross multiply
    378,126x = 585,778.50 × 585,778.50
  4. Step 4: Simplify right side
    378,126x = 343,136,451,062.25
  5. Step 5: Solve for x
    x = 343,136,451,062.25/378,126
  6. Step 6: Final answer
    x = 907,465.90

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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.