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Finding the Third Proportional to 291,440 and 627,592

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Solution

The third proportional to 291,440 and 627,592 is: 1,351,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,440 : 627,592 = 627,592 : x
  2. Step 2: Convert to fraction form
    291,440/627,592 = 627,592/x
  3. Step 3: Cross multiply
    291,440x = 627,592 × 627,592
  4. Step 4: Simplify right side
    291,440x = 393,871,718,464
  5. Step 5: Solve for x
    x = 393,871,718,464/291,440
  6. Step 6: Final answer
    x = 1,351,467.60

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.