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Finding the Third Proportional to 558.98 and 1,224.28

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Solution

The third proportional to 558.98 and 1,224.28 is: 2,681.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.98 : 1,224.28 = 1,224.28 : x
  2. Step 2: Convert to fraction form
    558.98/1,224.28 = 1,224.28/x
  3. Step 3: Cross multiply
    558.98x = 1,224.28 × 1,224.28
  4. Step 4: Simplify right side
    558.98x = 1,498,864.58
  5. Step 5: Solve for x
    x = 1,498,864.58/558.98
  6. Step 6: Final answer
    x = 2,681.41

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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.