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Finding the Third Proportional to 338,762 and 495,420

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Solution

The third proportional to 338,762 and 495,420 is: 724,523.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,762 : 495,420 = 495,420 : x
  2. Step 2: Convert to fraction form
    338,762/495,420 = 495,420/x
  3. Step 3: Cross multiply
    338,762x = 495,420 × 495,420
  4. Step 4: Simplify right side
    338,762x = 245,440,976,400
  5. Step 5: Solve for x
    x = 245,440,976,400/338,762
  6. Step 6: Final answer
    x = 724,523.34

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.