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Finding the Third Proportional to 392,937 and 859,432

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Solution

The third proportional to 392,937 and 859,432 is: 1,879,750.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,937 : 859,432 = 859,432 : x
  2. Step 2: Convert to fraction form
    392,937/859,432 = 859,432/x
  3. Step 3: Cross multiply
    392,937x = 859,432 × 859,432
  4. Step 4: Simplify right side
    392,937x = 738,623,362,624
  5. Step 5: Solve for x
    x = 738,623,362,624/392,937
  6. Step 6: Final answer
    x = 1,879,750.09

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.