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Finding the Third Proportional to 380,580.38 and 818,569.50

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Solution

The third proportional to 380,580.38 and 818,569.50 is: 1,760,616.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,580.38 : 818,569.50 = 818,569.50 : x
  2. Step 2: Convert to fraction form
    380,580.38/818,569.50 = 818,569.50/x
  3. Step 3: Cross multiply
    380,580.38x = 818,569.50 × 818,569.50
  4. Step 4: Simplify right side
    380,580.38x = 670,056,026,330.25
  5. Step 5: Solve for x
    x = 670,056,026,330.25/380,580.38
  6. Step 6: Final answer
    x = 1,760,616.34

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.