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Finding the Third Proportional to 435,638 and 938,028

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Solution

The third proportional to 435,638 and 938,028 is: 2,019,788.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,638 : 938,028 = 938,028 : x
  2. Step 2: Convert to fraction form
    435,638/938,028 = 938,028/x
  3. Step 3: Cross multiply
    435,638x = 938,028 × 938,028
  4. Step 4: Simplify right side
    435,638x = 879,896,528,784
  5. Step 5: Solve for x
    x = 879,896,528,784/435,638
  6. Step 6: Final answer
    x = 2,019,788.28

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.