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Finding the Third Proportional to 317,841 and 686,095.50

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Solution

The third proportional to 317,841 and 686,095.50 is: 1,481,014.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,841 : 686,095.50 = 686,095.50 : x
  2. Step 2: Convert to fraction form
    317,841/686,095.50 = 686,095.50/x
  3. Step 3: Cross multiply
    317,841x = 686,095.50 × 686,095.50
  4. Step 4: Simplify right side
    317,841x = 470,727,035,120.25
  5. Step 5: Solve for x
    x = 470,727,035,120.25/317,841
  6. Step 6: Final answer
    x = 1,481,014.20

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.