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Finding the Third Proportional to 921,518 and 1,442,471

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Solution

The third proportional to 921,518 and 1,442,471 is: 2,257,929.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,518 : 1,442,471 = 1,442,471 : x
  2. Step 2: Convert to fraction form
    921,518/1,442,471 = 1,442,471/x
  3. Step 3: Cross multiply
    921,518x = 1,442,471 × 1,442,471
  4. Step 4: Simplify right side
    921,518x = 2,080,722,585,841
  5. Step 5: Solve for x
    x = 2,080,722,585,841/921,518
  6. Step 6: Final answer
    x = 2,257,929.40

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.