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Finding the Third Proportional to 1,317,823 and 1,990,775.50

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Solution

The third proportional to 1,317,823 and 1,990,775.50 is: 3,007,374.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,823 : 1,990,775.50 = 1,990,775.50 : x
  2. Step 2: Convert to fraction form
    1,317,823/1,990,775.50 = 1,990,775.50/x
  3. Step 3: Cross multiply
    1,317,823x = 1,990,775.50 × 1,990,775.50
  4. Step 4: Simplify right side
    1,317,823x = 3,963,187,091,400.25
  5. Step 5: Solve for x
    x = 3,963,187,091,400.25/1,317,823
  6. Step 6: Final answer
    x = 3,007,374.35

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.