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Finding the Third Proportional to 606,270 and 909,405

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Solution

The third proportional to 606,270 and 909,405 is: 1,364,107.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,270 : 909,405 = 909,405 : x
  2. Step 2: Convert to fraction form
    606,270/909,405 = 909,405/x
  3. Step 3: Cross multiply
    606,270x = 909,405 × 909,405
  4. Step 4: Simplify right side
    606,270x = 827,017,454,025
  5. Step 5: Solve for x
    x = 827,017,454,025/606,270
  6. Step 6: Final answer
    x = 1,364,107.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.