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Finding the Third Proportional to 728,400 and 1,102,758

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Solution

The third proportional to 728,400 and 1,102,758 is: 1,669,515.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,400 : 1,102,758 = 1,102,758 : x
  2. Step 2: Convert to fraction form
    728,400/1,102,758 = 1,102,758/x
  3. Step 3: Cross multiply
    728,400x = 1,102,758 × 1,102,758
  4. Step 4: Simplify right side
    728,400x = 1,216,075,206,564
  5. Step 5: Solve for x
    x = 1,216,075,206,564/728,400
  6. Step 6: Final answer
    x = 1,669,515.66

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.