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Finding the Third Proportional to 879,405 and 1,313,931

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Solution

The third proportional to 879,405 and 1,313,931 is: 1,963,162.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,405 : 1,313,931 = 1,313,931 : x
  2. Step 2: Convert to fraction form
    879,405/1,313,931 = 1,313,931/x
  3. Step 3: Cross multiply
    879,405x = 1,313,931 × 1,313,931
  4. Step 4: Simplify right side
    879,405x = 1,726,414,672,761
  5. Step 5: Solve for x
    x = 1,726,414,672,761/879,405
  6. Step 6: Final answer
    x = 1,963,162.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.