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Finding the Third Proportional to 619,242.75 and 917,381.25

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Solution

The third proportional to 619,242.75 and 917,381.25 is: 1,359,060.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,242.75 : 917,381.25 = 917,381.25 : x
  2. Step 2: Convert to fraction form
    619,242.75/917,381.25 = 917,381.25/x
  3. Step 3: Cross multiply
    619,242.75x = 917,381.25 × 917,381.25
  4. Step 4: Simplify right side
    619,242.75x = 841,588,357,851.56
  5. Step 5: Solve for x
    x = 841,588,357,851.56/619,242.75
  6. Step 6: Final answer
    x = 1,359,060.49

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.