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Finding the Third Proportional to 668,208 and 1,439,808

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Solution

The third proportional to 668,208 and 1,439,808 is: 3,102,397.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,208 : 1,439,808 = 1,439,808 : x
  2. Step 2: Convert to fraction form
    668,208/1,439,808 = 1,439,808/x
  3. Step 3: Cross multiply
    668,208x = 1,439,808 × 1,439,808
  4. Step 4: Simplify right side
    668,208x = 2,073,047,076,864
  5. Step 5: Solve for x
    x = 2,073,047,076,864/668,208
  6. Step 6: Final answer
    x = 3,102,397.87

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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.