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Finding the Third Proportional to 459,722 and 713,640

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Solution

The third proportional to 459,722 and 713,640 is: 1,107,804.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,722 : 713,640 = 713,640 : x
  2. Step 2: Convert to fraction form
    459,722/713,640 = 713,640/x
  3. Step 3: Cross multiply
    459,722x = 713,640 × 713,640
  4. Step 4: Simplify right side
    459,722x = 509,282,049,600
  5. Step 5: Solve for x
    x = 509,282,049,600/459,722
  6. Step 6: Final answer
    x = 1,107,804.39

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.