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Finding the Third Proportional to 391,608 and 847,368

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Solution

The third proportional to 391,608 and 847,368 is: 1,833,549.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,608 : 847,368 = 847,368 : x
  2. Step 2: Convert to fraction form
    391,608/847,368 = 847,368/x
  3. Step 3: Cross multiply
    391,608x = 847,368 × 847,368
  4. Step 4: Simplify right side
    391,608x = 718,032,527,424
  5. Step 5: Solve for x
    x = 718,032,527,424/391,608
  6. Step 6: Final answer
    x = 1,833,549.18

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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.