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Finding the Third Proportional to 415,381.50 and 907,645.50

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Solution

The third proportional to 415,381.50 and 907,645.50 is: 1,983,286.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,381.50 : 907,645.50 = 907,645.50 : x
  2. Step 2: Convert to fraction form
    415,381.50/907,645.50 = 907,645.50/x
  3. Step 3: Cross multiply
    415,381.50x = 907,645.50 × 907,645.50
  4. Step 4: Simplify right side
    415,381.50x = 823,820,353,670.25
  5. Step 5: Solve for x
    x = 823,820,353,670.25/415,381.50
  6. Step 6: Final answer
    x = 1,983,286.10

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.