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Finding the Third Proportional to 620,578 and 948,915

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Solution

The third proportional to 620,578 and 948,915 is: 1,450,969.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,578 : 948,915 = 948,915 : x
  2. Step 2: Convert to fraction form
    620,578/948,915 = 948,915/x
  3. Step 3: Cross multiply
    620,578x = 948,915 × 948,915
  4. Step 4: Simplify right side
    620,578x = 900,439,677,225
  5. Step 5: Solve for x
    x = 900,439,677,225/620,578
  6. Step 6: Final answer
    x = 1,450,969.38

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.