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Finding the Third Proportional to 386,247 and 565,543

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Solution

The third proportional to 386,247 and 565,543 is: 828,068.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,247 : 565,543 = 565,543 : x
  2. Step 2: Convert to fraction form
    386,247/565,543 = 565,543/x
  3. Step 3: Cross multiply
    386,247x = 565,543 × 565,543
  4. Step 4: Simplify right side
    386,247x = 319,838,884,849
  5. Step 5: Solve for x
    x = 319,838,884,849/386,247
  6. Step 6: Final answer
    x = 828,068.27

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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.