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Finding the Third Proportional to 392,538 and 847,248

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Solution

The third proportional to 392,538 and 847,248 is: 1,828,687.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,538 : 847,248 = 847,248 : x
  2. Step 2: Convert to fraction form
    392,538/847,248 = 847,248/x
  3. Step 3: Cross multiply
    392,538x = 847,248 × 847,248
  4. Step 4: Simplify right side
    392,538x = 717,829,173,504
  5. Step 5: Solve for x
    x = 717,829,173,504/392,538
  6. Step 6: Final answer
    x = 1,828,687.09

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.