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Finding the Third Proportional to 378,324 and 791,700

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Solution

The third proportional to 378,324 and 791,700 is: 1,656,751.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,324 : 791,700 = 791,700 : x
  2. Step 2: Convert to fraction form
    378,324/791,700 = 791,700/x
  3. Step 3: Cross multiply
    378,324x = 791,700 × 791,700
  4. Step 4: Simplify right side
    378,324x = 626,788,890,000
  5. Step 5: Solve for x
    x = 626,788,890,000/378,324
  6. Step 6: Final answer
    x = 1,656,751.59

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.