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Finding the Third Proportional to 454,356 and 991,240.50

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Solution

The third proportional to 454,356 and 991,240.50 is: 2,162,528.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,356 : 991,240.50 = 991,240.50 : x
  2. Step 2: Convert to fraction form
    454,356/991,240.50 = 991,240.50/x
  3. Step 3: Cross multiply
    454,356x = 991,240.50 × 991,240.50
  4. Step 4: Simplify right side
    454,356x = 982,557,728,840.25
  5. Step 5: Solve for x
    x = 982,557,728,840.25/454,356
  6. Step 6: Final answer
    x = 2,162,528.35

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.