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Finding the Third Proportional to 319,760.25 and 683,828.50

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Solution

The third proportional to 319,760.25 and 683,828.50 is: 1,462,412.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,760.25 : 683,828.50 = 683,828.50 : x
  2. Step 2: Convert to fraction form
    319,760.25/683,828.50 = 683,828.50/x
  3. Step 3: Cross multiply
    319,760.25x = 683,828.50 × 683,828.50
  4. Step 4: Simplify right side
    319,760.25x = 467,621,417,412.25
  5. Step 5: Solve for x
    x = 467,621,417,412.25/319,760.25
  6. Step 6: Final answer
    x = 1,462,412.60

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.