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Finding the Third Proportional to 643,732 and 973,880

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Solution

The third proportional to 643,732 and 973,880 is: 1,473,349.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,732 : 973,880 = 973,880 : x
  2. Step 2: Convert to fraction form
    643,732/973,880 = 973,880/x
  3. Step 3: Cross multiply
    643,732x = 973,880 × 973,880
  4. Step 4: Simplify right side
    643,732x = 948,442,254,400
  5. Step 5: Solve for x
    x = 948,442,254,400/643,732
  6. Step 6: Final answer
    x = 1,473,349.55

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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.