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Finding the Third Proportional to 356,572 and 783,132

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Solution

The third proportional to 356,572 and 783,132 is: 1,719,977.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,572 : 783,132 = 783,132 : x
  2. Step 2: Convert to fraction form
    356,572/783,132 = 783,132/x
  3. Step 3: Cross multiply
    356,572x = 783,132 × 783,132
  4. Step 4: Simplify right side
    356,572x = 613,295,729,424
  5. Step 5: Solve for x
    x = 613,295,729,424/356,572
  6. Step 6: Final answer
    x = 1,719,977.25

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.