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Finding the Third Proportional to 342,004.50 and 742,420.50

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Solution

The third proportional to 342,004.50 and 742,420.50 is: 1,611,640.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,004.50 : 742,420.50 = 742,420.50 : x
  2. Step 2: Convert to fraction form
    342,004.50/742,420.50 = 742,420.50/x
  3. Step 3: Cross multiply
    342,004.50x = 742,420.50 × 742,420.50
  4. Step 4: Simplify right side
    342,004.50x = 551,188,198,820.25
  5. Step 5: Solve for x
    x = 551,188,198,820.25/342,004.50
  6. Step 6: Final answer
    x = 1,611,640.19

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.