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Finding the Third Proportional to 394,158 and 608,704

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Solution

The third proportional to 394,158 and 608,704 is: 940,030.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,158 : 608,704 = 608,704 : x
  2. Step 2: Convert to fraction form
    394,158/608,704 = 608,704/x
  3. Step 3: Cross multiply
    394,158x = 608,704 × 608,704
  4. Step 4: Simplify right side
    394,158x = 370,520,559,616
  5. Step 5: Solve for x
    x = 370,520,559,616/394,158
  6. Step 6: Final answer
    x = 940,030.55

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.