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Finding the Third Proportional to 283,090 and 618,686

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Solution

The third proportional to 283,090 and 618,686 is: 1,352,122.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,090 : 618,686 = 618,686 : x
  2. Step 2: Convert to fraction form
    283,090/618,686 = 618,686/x
  3. Step 3: Cross multiply
    283,090x = 618,686 × 618,686
  4. Step 4: Simplify right side
    283,090x = 382,772,366,596
  5. Step 5: Solve for x
    x = 382,772,366,596/283,090
  6. Step 6: Final answer
    x = 1,352,122.53

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.