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Finding the Third Proportional to 295,260 and 640,536

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Solution

The third proportional to 295,260 and 640,536 is: 1,389,576.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,260 : 640,536 = 640,536 : x
  2. Step 2: Convert to fraction form
    295,260/640,536 = 640,536/x
  3. Step 3: Cross multiply
    295,260x = 640,536 × 640,536
  4. Step 4: Simplify right side
    295,260x = 410,286,367,296
  5. Step 5: Solve for x
    x = 410,286,367,296/295,260
  6. Step 6: Final answer
    x = 1,389,576.53

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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.