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Finding the Third Proportional to 415,260 and 903,420

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Solution

The third proportional to 415,260 and 903,420 is: 1,965,437.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,260 : 903,420 = 903,420 : x
  2. Step 2: Convert to fraction form
    415,260/903,420 = 903,420/x
  3. Step 3: Cross multiply
    415,260x = 903,420 × 903,420
  4. Step 4: Simplify right side
    415,260x = 816,167,696,400
  5. Step 5: Solve for x
    x = 816,167,696,400/415,260
  6. Step 6: Final answer
    x = 1,965,437.79

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.