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Finding the Third Proportional to 618,825 and 984,621.75

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Solution

The third proportional to 618,825 and 984,621.75 is: 1,566,646.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,825 : 984,621.75 = 984,621.75 : x
  2. Step 2: Convert to fraction form
    618,825/984,621.75 = 984,621.75/x
  3. Step 3: Cross multiply
    618,825x = 984,621.75 × 984,621.75
  4. Step 4: Simplify right side
    618,825x = 969,479,990,573.06
  5. Step 5: Solve for x
    x = 969,479,990,573.06/618,825
  6. Step 6: Final answer
    x = 1,566,646.45

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.