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Finding the Third Proportional to 458,643 and 972,790

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Solution

The third proportional to 458,643 and 972,790 is: 2,063,304.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,643 : 972,790 = 972,790 : x
  2. Step 2: Convert to fraction form
    458,643/972,790 = 972,790/x
  3. Step 3: Cross multiply
    458,643x = 972,790 × 972,790
  4. Step 4: Simplify right side
    458,643x = 946,320,384,100
  5. Step 5: Solve for x
    x = 946,320,384,100/458,643
  6. Step 6: Final answer
    x = 2,063,304.98

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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.