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Finding the Third Proportional to 575,440 and 871,156

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Solution

The third proportional to 575,440 and 871,156 is: 1,318,839.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,440 : 871,156 = 871,156 : x
  2. Step 2: Convert to fraction form
    575,440/871,156 = 871,156/x
  3. Step 3: Cross multiply
    575,440x = 871,156 × 871,156
  4. Step 4: Simplify right side
    575,440x = 758,912,776,336
  5. Step 5: Solve for x
    x = 758,912,776,336/575,440
  6. Step 6: Final answer
    x = 1,318,839.11

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.