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Finding the Third Proportional to 898,019 and 1,421,720

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Solution

The third proportional to 898,019 and 1,421,720 is: 2,250,829.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,019 : 1,421,720 = 1,421,720 : x
  2. Step 2: Convert to fraction form
    898,019/1,421,720 = 1,421,720/x
  3. Step 3: Cross multiply
    898,019x = 1,421,720 × 1,421,720
  4. Step 4: Simplify right side
    898,019x = 2,021,287,758,400
  5. Step 5: Solve for x
    x = 2,021,287,758,400/898,019
  6. Step 6: Final answer
    x = 2,250,829.61

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.