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Finding the Third Proportional to 485,444 and 753,726

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Solution

The third proportional to 485,444 and 753,726 is: 1,170,274.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,444 : 753,726 = 753,726 : x
  2. Step 2: Convert to fraction form
    485,444/753,726 = 753,726/x
  3. Step 3: Cross multiply
    485,444x = 753,726 × 753,726
  4. Step 4: Simplify right side
    485,444x = 568,102,883,076
  5. Step 5: Solve for x
    x = 568,102,883,076/485,444
  6. Step 6: Final answer
    x = 1,170,274.81

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.