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Finding the Third Proportional to 384,120 and 838,080

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Solution

The third proportional to 384,120 and 838,080 is: 1,828,538.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,120 : 838,080 = 838,080 : x
  2. Step 2: Convert to fraction form
    384,120/838,080 = 838,080/x
  3. Step 3: Cross multiply
    384,120x = 838,080 × 838,080
  4. Step 4: Simplify right side
    384,120x = 702,378,086,400
  5. Step 5: Solve for x
    x = 702,378,086,400/384,120
  6. Step 6: Final answer
    x = 1,828,538.18

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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.