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Finding the Third Proportional to 874,440 and 1,286,655

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Solution

The third proportional to 874,440 and 1,286,655 is: 1,893,190.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,440 : 1,286,655 = 1,286,655 : x
  2. Step 2: Convert to fraction form
    874,440/1,286,655 = 1,286,655/x
  3. Step 3: Cross multiply
    874,440x = 1,286,655 × 1,286,655
  4. Step 4: Simplify right side
    874,440x = 1,655,481,089,025
  5. Step 5: Solve for x
    x = 1,655,481,089,025/874,440
  6. Step 6: Final answer
    x = 1,893,190.03

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.