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Finding the Third Proportional to 358,286 and 782,068

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Solution

The third proportional to 358,286 and 782,068 is: 1,707,100.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,286 : 782,068 = 782,068 : x
  2. Step 2: Convert to fraction form
    358,286/782,068 = 782,068/x
  3. Step 3: Cross multiply
    358,286x = 782,068 × 782,068
  4. Step 4: Simplify right side
    358,286x = 611,630,356,624
  5. Step 5: Solve for x
    x = 611,630,356,624/358,286
  6. Step 6: Final answer
    x = 1,707,100.91

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.