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Finding the Third Proportional to 551,253.75 and 748,128

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Solution

The third proportional to 551,253.75 and 748,128 is: 1,015,313.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,253.75 : 748,128 = 748,128 : x
  2. Step 2: Convert to fraction form
    551,253.75/748,128 = 748,128/x
  3. Step 3: Cross multiply
    551,253.75x = 748,128 × 748,128
  4. Step 4: Simplify right side
    551,253.75x = 559,695,504,384
  5. Step 5: Solve for x
    x = 559,695,504,384/551,253.75
  6. Step 6: Final answer
    x = 1,015,313.74

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.