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Finding the Third Proportional to 398,683.50 and 852,690

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Solution

The third proportional to 398,683.50 and 852,690 is: 1,823,702.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,683.50 : 852,690 = 852,690 : x
  2. Step 2: Convert to fraction form
    398,683.50/852,690 = 852,690/x
  3. Step 3: Cross multiply
    398,683.50x = 852,690 × 852,690
  4. Step 4: Simplify right side
    398,683.50x = 727,080,236,100
  5. Step 5: Solve for x
    x = 727,080,236,100/398,683.50
  6. Step 6: Final answer
    x = 1,823,702.85

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.