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Finding the Third Proportional to 558,928 and 790,116

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Solution

The third proportional to 558,928 and 790,116 is: 1,116,929.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,928 : 790,116 = 790,116 : x
  2. Step 2: Convert to fraction form
    558,928/790,116 = 790,116/x
  3. Step 3: Cross multiply
    558,928x = 790,116 × 790,116
  4. Step 4: Simplify right side
    558,928x = 624,283,293,456
  5. Step 5: Solve for x
    x = 624,283,293,456/558,928
  6. Step 6: Final answer
    x = 1,116,929.72

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.