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Finding the Third Proportional to 401,490 and 891,552

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Solution

The third proportional to 401,490 and 891,552 is: 1,979,787.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,490 : 891,552 = 891,552 : x
  2. Step 2: Convert to fraction form
    401,490/891,552 = 891,552/x
  3. Step 3: Cross multiply
    401,490x = 891,552 × 891,552
  4. Step 4: Simplify right side
    401,490x = 794,864,968,704
  5. Step 5: Solve for x
    x = 794,864,968,704/401,490
  6. Step 6: Final answer
    x = 1,979,787.71

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.