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Finding the Third Proportional to 354,456 and 531,684

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Solution

The third proportional to 354,456 and 531,684 is: 797,526

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,456 : 531,684 = 531,684 : x
  2. Step 2: Convert to fraction form
    354,456/531,684 = 531,684/x
  3. Step 3: Cross multiply
    354,456x = 531,684 × 531,684
  4. Step 4: Simplify right side
    354,456x = 282,687,875,856
  5. Step 5: Solve for x
    x = 282,687,875,856/354,456
  6. Step 6: Final answer
    x = 797,526

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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.