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Finding the Third Proportional to 939,800 and 1,513,220

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Solution

The third proportional to 939,800 and 1,513,220 is: 2,436,512.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,800 : 1,513,220 = 1,513,220 : x
  2. Step 2: Convert to fraction form
    939,800/1,513,220 = 1,513,220/x
  3. Step 3: Cross multiply
    939,800x = 1,513,220 × 1,513,220
  4. Step 4: Simplify right side
    939,800x = 2,289,834,768,400
  5. Step 5: Solve for x
    x = 2,289,834,768,400/939,800
  6. Step 6: Final answer
    x = 2,436,512.84

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.