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Finding the Third Proportional to 391,835.25 and 860,730.75

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Solution

The third proportional to 391,835.25 and 860,730.75 is: 1,890,737.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,835.25 : 860,730.75 = 860,730.75 : x
  2. Step 2: Convert to fraction form
    391,835.25/860,730.75 = 860,730.75/x
  3. Step 3: Cross multiply
    391,835.25x = 860,730.75 × 860,730.75
  4. Step 4: Simplify right side
    391,835.25x = 740,857,423,995.56
  5. Step 5: Solve for x
    x = 740,857,423,995.56/391,835.25
  6. Step 6: Final answer
    x = 1,890,737.05

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.