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Finding the Third Proportional to 394,130 and 611,436

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Solution

The third proportional to 394,130 and 611,436 is: 948,555.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,130 : 611,436 = 611,436 : x
  2. Step 2: Convert to fraction form
    394,130/611,436 = 611,436/x
  3. Step 3: Cross multiply
    394,130x = 611,436 × 611,436
  4. Step 4: Simplify right side
    394,130x = 373,853,982,096
  5. Step 5: Solve for x
    x = 373,853,982,096/394,130
  6. Step 6: Final answer
    x = 948,555.00

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.