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Finding the Third Proportional to 554,120 and 1,211,920

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Solution

The third proportional to 554,120 and 1,211,920 is: 2,650,599.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,120 : 1,211,920 = 1,211,920 : x
  2. Step 2: Convert to fraction form
    554,120/1,211,920 = 1,211,920/x
  3. Step 3: Cross multiply
    554,120x = 1,211,920 × 1,211,920
  4. Step 4: Simplify right side
    554,120x = 1,468,750,086,400
  5. Step 5: Solve for x
    x = 1,468,750,086,400/554,120
  6. Step 6: Final answer
    x = 2,650,599.30

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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.