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Finding the Third Proportional to 317,869 and 480,043

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Solution

The third proportional to 317,869 and 480,043 is: 724,956.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,869 : 480,043 = 480,043 : x
  2. Step 2: Convert to fraction form
    317,869/480,043 = 480,043/x
  3. Step 3: Cross multiply
    317,869x = 480,043 × 480,043
  4. Step 4: Simplify right side
    317,869x = 230,441,281,849
  5. Step 5: Solve for x
    x = 230,441,281,849/317,869
  6. Step 6: Final answer
    x = 724,956.76

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.