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Finding the Third Proportional to 378,389.75 and 569,174.25

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Solution

The third proportional to 378,389.75 and 569,174.25 is: 856,152.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,389.75 : 569,174.25 = 569,174.25 : x
  2. Step 2: Convert to fraction form
    378,389.75/569,174.25 = 569,174.25/x
  3. Step 3: Cross multiply
    378,389.75x = 569,174.25 × 569,174.25
  4. Step 4: Simplify right side
    378,389.75x = 323,959,326,863.06
  5. Step 5: Solve for x
    x = 323,959,326,863.06/378,389.75
  6. Step 6: Final answer
    x = 856,152.49

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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.