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Finding the Third Proportional to 647,543 and 980,346

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Solution

The third proportional to 647,543 and 980,346 is: 1,484,192.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,543 : 980,346 = 980,346 : x
  2. Step 2: Convert to fraction form
    647,543/980,346 = 980,346/x
  3. Step 3: Cross multiply
    647,543x = 980,346 × 980,346
  4. Step 4: Simplify right side
    647,543x = 961,078,279,716
  5. Step 5: Solve for x
    x = 961,078,279,716/647,543
  6. Step 6: Final answer
    x = 1,484,192.22

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.