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Finding the Third Proportional to 302,318 and 659,898

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Solution

The third proportional to 302,318 and 659,898 is: 1,440,421.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,318 : 659,898 = 659,898 : x
  2. Step 2: Convert to fraction form
    302,318/659,898 = 659,898/x
  3. Step 3: Cross multiply
    302,318x = 659,898 × 659,898
  4. Step 4: Simplify right side
    302,318x = 435,465,370,404
  5. Step 5: Solve for x
    x = 435,465,370,404/302,318
  6. Step 6: Final answer
    x = 1,440,421.58

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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.