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Finding the Third Proportional to 339,664 and 719,786

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Solution

The third proportional to 339,664 and 719,786 is: 1,525,307.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,664 : 719,786 = 719,786 : x
  2. Step 2: Convert to fraction form
    339,664/719,786 = 719,786/x
  3. Step 3: Cross multiply
    339,664x = 719,786 × 719,786
  4. Step 4: Simplify right side
    339,664x = 518,091,885,796
  5. Step 5: Solve for x
    x = 518,091,885,796/339,664
  6. Step 6: Final answer
    x = 1,525,307.03

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.