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Finding the Third Proportional to 749,515 and 1,068,220

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Solution

The third proportional to 749,515 and 1,068,220 is: 1,522,443.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,515 : 1,068,220 = 1,068,220 : x
  2. Step 2: Convert to fraction form
    749,515/1,068,220 = 1,068,220/x
  3. Step 3: Cross multiply
    749,515x = 1,068,220 × 1,068,220
  4. Step 4: Simplify right side
    749,515x = 1,141,093,968,400
  5. Step 5: Solve for x
    x = 1,141,093,968,400/749,515
  6. Step 6: Final answer
    x = 1,522,443.14

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.