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Finding the Third Proportional to 380,307 and 569,272

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Solution

The third proportional to 380,307 and 569,272 is: 852,128.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,307 : 569,272 = 569,272 : x
  2. Step 2: Convert to fraction form
    380,307/569,272 = 569,272/x
  3. Step 3: Cross multiply
    380,307x = 569,272 × 569,272
  4. Step 4: Simplify right side
    380,307x = 324,070,609,984
  5. Step 5: Solve for x
    x = 324,070,609,984/380,307
  6. Step 6: Final answer
    x = 852,128.96

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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.