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Finding the Third Proportional to 553,131 and 756,988

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Solution

The third proportional to 553,131 and 756,988 is: 1,035,976.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,131 : 756,988 = 756,988 : x
  2. Step 2: Convert to fraction form
    553,131/756,988 = 756,988/x
  3. Step 3: Cross multiply
    553,131x = 756,988 × 756,988
  4. Step 4: Simplify right side
    553,131x = 573,030,832,144
  5. Step 5: Solve for x
    x = 573,030,832,144/553,131
  6. Step 6: Final answer
    x = 1,035,976.71

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.