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Finding the Third Proportional to 824,420 and 1,311,434

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Solution

The third proportional to 824,420 and 1,311,434 is: 2,086,144.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,420 : 1,311,434 = 1,311,434 : x
  2. Step 2: Convert to fraction form
    824,420/1,311,434 = 1,311,434/x
  3. Step 3: Cross multiply
    824,420x = 1,311,434 × 1,311,434
  4. Step 4: Simplify right side
    824,420x = 1,719,859,136,356
  5. Step 5: Solve for x
    x = 1,719,859,136,356/824,420
  6. Step 6: Final answer
    x = 2,086,144.36

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.