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Finding the Third Proportional to 620,773 and 949,209

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Solution

The third proportional to 620,773 and 949,209 is: 1,451,412.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,773 : 949,209 = 949,209 : x
  2. Step 2: Convert to fraction form
    620,773/949,209 = 949,209/x
  3. Step 3: Cross multiply
    620,773x = 949,209 × 949,209
  4. Step 4: Simplify right side
    620,773x = 900,997,725,681
  5. Step 5: Solve for x
    x = 900,997,725,681/620,773
  6. Step 6: Final answer
    x = 1,451,412.55

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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.