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Finding the Third Proportional to 577,540 and 866,310

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Solution

The third proportional to 577,540 and 866,310 is: 1,299,465

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,540 : 866,310 = 866,310 : x
  2. Step 2: Convert to fraction form
    577,540/866,310 = 866,310/x
  3. Step 3: Cross multiply
    577,540x = 866,310 × 866,310
  4. Step 4: Simplify right side
    577,540x = 750,493,016,100
  5. Step 5: Solve for x
    x = 750,493,016,100/577,540
  6. Step 6: Final answer
    x = 1,299,465

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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.