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Finding the Third Proportional to 291,374 and 623,266

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Solution

The third proportional to 291,374 and 623,266 is: 1,333,202.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,374 : 623,266 = 623,266 : x
  2. Step 2: Convert to fraction form
    291,374/623,266 = 623,266/x
  3. Step 3: Cross multiply
    291,374x = 623,266 × 623,266
  4. Step 4: Simplify right side
    291,374x = 388,460,506,756
  5. Step 5: Solve for x
    x = 388,460,506,756/291,374
  6. Step 6: Final answer
    x = 1,333,202.37

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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.