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Finding the Third Proportional to 347,154 and 520,731

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Solution

The third proportional to 347,154 and 520,731 is: 781,096.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,154 : 520,731 = 520,731 : x
  2. Step 2: Convert to fraction form
    347,154/520,731 = 520,731/x
  3. Step 3: Cross multiply
    347,154x = 520,731 × 520,731
  4. Step 4: Simplify right side
    347,154x = 271,160,774,361
  5. Step 5: Solve for x
    x = 271,160,774,361/347,154
  6. Step 6: Final answer
    x = 781,096.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.