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Finding the Third Proportional to 910,630 and 1,336,420

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Solution

The third proportional to 910,630 and 1,336,420 is: 1,961,299.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,630 : 1,336,420 = 1,336,420 : x
  2. Step 2: Convert to fraction form
    910,630/1,336,420 = 1,336,420/x
  3. Step 3: Cross multiply
    910,630x = 1,336,420 × 1,336,420
  4. Step 4: Simplify right side
    910,630x = 1,786,018,416,400
  5. Step 5: Solve for x
    x = 1,786,018,416,400/910,630
  6. Step 6: Final answer
    x = 1,961,299.78

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.