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Finding the Third Proportional to 657,153 and 988,645.50

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Solution

The third proportional to 657,153 and 988,645.50 is: 1,487,355.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,153 : 988,645.50 = 988,645.50 : x
  2. Step 2: Convert to fraction form
    657,153/988,645.50 = 988,645.50/x
  3. Step 3: Cross multiply
    657,153x = 988,645.50 × 988,645.50
  4. Step 4: Simplify right side
    657,153x = 977,419,924,670.25
  5. Step 5: Solve for x
    x = 977,419,924,670.25/657,153
  6. Step 6: Final answer
    x = 1,487,355.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.