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Finding the Third Proportional to 386,229 and 565,516

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Solution

The third proportional to 386,229 and 565,516 is: 828,027.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,229 : 565,516 = 565,516 : x
  2. Step 2: Convert to fraction form
    386,229/565,516 = 565,516/x
  3. Step 3: Cross multiply
    386,229x = 565,516 × 565,516
  4. Step 4: Simplify right side
    386,229x = 319,808,346,256
  5. Step 5: Solve for x
    x = 319,808,346,256/386,229
  6. Step 6: Final answer
    x = 828,027.79

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.