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Finding the Third Proportional to 426,960 and 917,235

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Solution

The third proportional to 426,960 and 917,235 is: 1,970,489.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,960 : 917,235 = 917,235 : x
  2. Step 2: Convert to fraction form
    426,960/917,235 = 917,235/x
  3. Step 3: Cross multiply
    426,960x = 917,235 × 917,235
  4. Step 4: Simplify right side
    426,960x = 841,320,045,225
  5. Step 5: Solve for x
    x = 841,320,045,225/426,960
  6. Step 6: Final answer
    x = 1,970,489.14

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.