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Finding the Third Proportional to 409,587 and 614,380

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Solution

The third proportional to 409,587 and 614,380 is: 921,569.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,587 : 614,380 = 614,380 : x
  2. Step 2: Convert to fraction form
    409,587/614,380 = 614,380/x
  3. Step 3: Cross multiply
    409,587x = 614,380 × 614,380
  4. Step 4: Simplify right side
    409,587x = 377,462,784,400
  5. Step 5: Solve for x
    x = 377,462,784,400/409,587
  6. Step 6: Final answer
    x = 921,569.25

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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.