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Finding the Third Proportional to 456,909.75 and 990,092.25

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Solution

The third proportional to 456,909.75 and 990,092.25 is: 2,145,462.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,909.75 : 990,092.25 = 990,092.25 : x
  2. Step 2: Convert to fraction form
    456,909.75/990,092.25 = 990,092.25/x
  3. Step 3: Cross multiply
    456,909.75x = 990,092.25 × 990,092.25
  4. Step 4: Simplify right side
    456,909.75x = 980,282,663,510.06
  5. Step 5: Solve for x
    x = 980,282,663,510.06/456,909.75
  6. Step 6: Final answer
    x = 2,145,462.34

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.