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Finding the Third Proportional to 787,366 and 1,221,515

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Solution

The third proportional to 787,366 and 1,221,515 is: 1,895,051.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,366 : 1,221,515 = 1,221,515 : x
  2. Step 2: Convert to fraction form
    787,366/1,221,515 = 1,221,515/x
  3. Step 3: Cross multiply
    787,366x = 1,221,515 × 1,221,515
  4. Step 4: Simplify right side
    787,366x = 1,492,098,895,225
  5. Step 5: Solve for x
    x = 1,492,098,895,225/787,366
  6. Step 6: Final answer
    x = 1,895,051.22

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.