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Finding the Third Proportional to 412,155 and 868,590

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Solution

The third proportional to 412,155 and 868,590 is: 1,830,497.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,155 : 868,590 = 868,590 : x
  2. Step 2: Convert to fraction form
    412,155/868,590 = 868,590/x
  3. Step 3: Cross multiply
    412,155x = 868,590 × 868,590
  4. Step 4: Simplify right side
    412,155x = 754,448,588,100
  5. Step 5: Solve for x
    x = 754,448,588,100/412,155
  6. Step 6: Final answer
    x = 1,830,497.24

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.