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Finding the Third Proportional to 229,319 and 486,389

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Solution

The third proportional to 229,319 and 486,389 is: 1,031,638.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,319 : 486,389 = 486,389 : x
  2. Step 2: Convert to fraction form
    229,319/486,389 = 486,389/x
  3. Step 3: Cross multiply
    229,319x = 486,389 × 486,389
  4. Step 4: Simplify right side
    229,319x = 236,574,259,321
  5. Step 5: Solve for x
    x = 236,574,259,321/229,319
  6. Step 6: Final answer
    x = 1,031,638.28

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.