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Finding the Third Proportional to 542.81 and 1,058.63

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Solution

The third proportional to 542.81 and 1,058.63 is: 2,064.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    542.81 : 1,058.63 = 1,058.63 : x
  2. Step 2: Convert to fraction form
    542.81/1,058.63 = 1,058.63/x
  3. Step 3: Cross multiply
    542.81x = 1,058.63 × 1,058.63
  4. Step 4: Simplify right side
    542.81x = 1,120,686.89
  5. Step 5: Solve for x
    x = 1,120,686.89/542.81
  6. Step 6: Final answer
    x = 2,064.59

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.