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Finding the Third Proportional to 831,843 and 1,242,220.50

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Solution

The third proportional to 831,843 and 1,242,220.50 is: 1,855,051.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,843 : 1,242,220.50 = 1,242,220.50 : x
  2. Step 2: Convert to fraction form
    831,843/1,242,220.50 = 1,242,220.50/x
  3. Step 3: Cross multiply
    831,843x = 1,242,220.50 × 1,242,220.50
  4. Step 4: Simplify right side
    831,843x = 1,543,111,770,620.25
  5. Step 5: Solve for x
    x = 1,543,111,770,620.25/831,843
  6. Step 6: Final answer
    x = 1,855,051.70

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.