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Finding the Third Proportional to 426,118 and 911,336

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Solution

The third proportional to 426,118 and 911,336 is: 1,949,068.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,118 : 911,336 = 911,336 : x
  2. Step 2: Convert to fraction form
    426,118/911,336 = 911,336/x
  3. Step 3: Cross multiply
    426,118x = 911,336 × 911,336
  4. Step 4: Simplify right side
    426,118x = 830,533,304,896
  5. Step 5: Solve for x
    x = 830,533,304,896/426,118
  6. Step 6: Final answer
    x = 1,949,068.81

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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.