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Finding the Third Proportional to 510,963.75 and 742,660.50

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Solution

The third proportional to 510,963.75 and 742,660.50 is: 1,079,420.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,963.75 : 742,660.50 = 742,660.50 : x
  2. Step 2: Convert to fraction form
    510,963.75/742,660.50 = 742,660.50/x
  3. Step 3: Cross multiply
    510,963.75x = 742,660.50 × 742,660.50
  4. Step 4: Simplify right side
    510,963.75x = 551,544,618,260.25
  5. Step 5: Solve for x
    x = 551,544,618,260.25/510,963.75
  6. Step 6: Final answer
    x = 1,079,420.25

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.