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Finding the Third Proportional to 612,408 and 1,298,938.50

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Solution

The third proportional to 612,408 and 1,298,938.50 is: 2,755,093.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,408 : 1,298,938.50 = 1,298,938.50 : x
  2. Step 2: Convert to fraction form
    612,408/1,298,938.50 = 1,298,938.50/x
  3. Step 3: Cross multiply
    612,408x = 1,298,938.50 × 1,298,938.50
  4. Step 4: Simplify right side
    612,408x = 1,687,241,226,782.25
  5. Step 5: Solve for x
    x = 1,687,241,226,782.25/612,408
  6. Step 6: Final answer
    x = 2,755,093.38

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.