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Finding the Third Proportional to 357,078.75 and 743,749.50

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Solution

The third proportional to 357,078.75 and 743,749.50 is: 1,549,135.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,078.75 : 743,749.50 = 743,749.50 : x
  2. Step 2: Convert to fraction form
    357,078.75/743,749.50 = 743,749.50/x
  3. Step 3: Cross multiply
    357,078.75x = 743,749.50 × 743,749.50
  4. Step 4: Simplify right side
    357,078.75x = 553,163,318,750.25
  5. Step 5: Solve for x
    x = 553,163,318,750.25/357,078.75
  6. Step 6: Final answer
    x = 1,549,135.36

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.