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Finding the Third Proportional to 890,629 and 1,868,739

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Solution

The third proportional to 890,629 and 1,868,739 is: 3,921,032.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,629 : 1,868,739 = 1,868,739 : x
  2. Step 2: Convert to fraction form
    890,629/1,868,739 = 1,868,739/x
  3. Step 3: Cross multiply
    890,629x = 1,868,739 × 1,868,739
  4. Step 4: Simplify right side
    890,629x = 3,492,185,450,121
  5. Step 5: Solve for x
    x = 3,492,185,450,121/890,629
  6. Step 6: Final answer
    x = 3,921,032.72

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.