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Finding the Third Proportional to 318,928.50 and 479,835

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Solution

The third proportional to 318,928.50 and 479,835 is: 721,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,928.50 : 479,835 = 479,835 : x
  2. Step 2: Convert to fraction form
    318,928.50/479,835 = 479,835/x
  3. Step 3: Cross multiply
    318,928.50x = 479,835 × 479,835
  4. Step 4: Simplify right side
    318,928.50x = 230,241,627,225
  5. Step 5: Solve for x
    x = 230,241,627,225/318,928.50
  6. Step 6: Final answer
    x = 721,922.40

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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.