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Finding the Third Proportional to 482,461.50 and 643,194.75

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Solution

The third proportional to 482,461.50 and 643,194.75 is: 857,476.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,461.50 : 643,194.75 = 643,194.75 : x
  2. Step 2: Convert to fraction form
    482,461.50/643,194.75 = 643,194.75/x
  3. Step 3: Cross multiply
    482,461.50x = 643,194.75 × 643,194.75
  4. Step 4: Simplify right side
    482,461.50x = 413,699,486,427.56
  5. Step 5: Solve for x
    x = 413,699,486,427.56/482,461.50
  6. Step 6: Final answer
    x = 857,476.68

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.