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Finding the Third Proportional to 331,230 and 718,476

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Solution

The third proportional to 331,230 and 718,476 is: 1,558,457.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,230 : 718,476 = 718,476 : x
  2. Step 2: Convert to fraction form
    331,230/718,476 = 718,476/x
  3. Step 3: Cross multiply
    331,230x = 718,476 × 718,476
  4. Step 4: Simplify right side
    331,230x = 516,207,762,576
  5. Step 5: Solve for x
    x = 516,207,762,576/331,230
  6. Step 6: Final answer
    x = 1,558,457.15

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.