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Finding the Third Proportional to 423,437 and 908,272

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Solution

The third proportional to 423,437 and 908,272 is: 1,948,242.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,437 : 908,272 = 908,272 : x
  2. Step 2: Convert to fraction form
    423,437/908,272 = 908,272/x
  3. Step 3: Cross multiply
    423,437x = 908,272 × 908,272
  4. Step 4: Simplify right side
    423,437x = 824,958,025,984
  5. Step 5: Solve for x
    x = 824,958,025,984/423,437
  6. Step 6: Final answer
    x = 1,948,242.66

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.