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Finding the Third Proportional to 454,290.75 and 660,285

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Solution

The third proportional to 454,290.75 and 660,285 is: 959,685.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,290.75 : 660,285 = 660,285 : x
  2. Step 2: Convert to fraction form
    454,290.75/660,285 = 660,285/x
  3. Step 3: Cross multiply
    454,290.75x = 660,285 × 660,285
  4. Step 4: Simplify right side
    454,290.75x = 435,976,281,225
  5. Step 5: Solve for x
    x = 435,976,281,225/454,290.75
  6. Step 6: Final answer
    x = 959,685.58

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.