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Finding the Third Proportional to 427,384.75 and 676,752.75

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Solution

The third proportional to 427,384.75 and 676,752.75 is: 1,071,620.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,384.75 : 676,752.75 = 676,752.75 : x
  2. Step 2: Convert to fraction form
    427,384.75/676,752.75 = 676,752.75/x
  3. Step 3: Cross multiply
    427,384.75x = 676,752.75 × 676,752.75
  4. Step 4: Simplify right side
    427,384.75x = 457,994,284,632.56
  5. Step 5: Solve for x
    x = 457,994,284,632.56/427,384.75
  6. Step 6: Final answer
    x = 1,071,620.56

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.