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Finding the Third Proportional to 618,432 and 1,330,357.50

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Solution

The third proportional to 618,432 and 1,330,357.50 is: 2,861,836.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,432 : 1,330,357.50 = 1,330,357.50 : x
  2. Step 2: Convert to fraction form
    618,432/1,330,357.50 = 1,330,357.50/x
  3. Step 3: Cross multiply
    618,432x = 1,330,357.50 × 1,330,357.50
  4. Step 4: Simplify right side
    618,432x = 1,769,851,077,806.25
  5. Step 5: Solve for x
    x = 1,769,851,077,806.25/618,432
  6. Step 6: Final answer
    x = 2,861,836.19

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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.