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Finding the Third Proportional to 379,314 and 569,979

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Solution

The third proportional to 379,314 and 569,979 is: 856,483.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,314 : 569,979 = 569,979 : x
  2. Step 2: Convert to fraction form
    379,314/569,979 = 569,979/x
  3. Step 3: Cross multiply
    379,314x = 569,979 × 569,979
  4. Step 4: Simplify right side
    379,314x = 324,876,060,441
  5. Step 5: Solve for x
    x = 324,876,060,441/379,314
  6. Step 6: Final answer
    x = 856,483.18

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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.