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Finding the Third Proportional to 781,296 and 1,658,553

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Solution

The third proportional to 781,296 and 1,658,553 is: 3,520,814.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,296 : 1,658,553 = 1,658,553 : x
  2. Step 2: Convert to fraction form
    781,296/1,658,553 = 1,658,553/x
  3. Step 3: Cross multiply
    781,296x = 1,658,553 × 1,658,553
  4. Step 4: Simplify right side
    781,296x = 2,750,798,053,809
  5. Step 5: Solve for x
    x = 2,750,798,053,809/781,296
  6. Step 6: Final answer
    x = 3,520,814.20

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.