Home / 419,724.14-629,772.04-219,997.04

Finding the Fourth Proportional to 419,724.14, 629,772.04 and 219,997.04

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Solution

The fourth proportional to 419,724.14, 629,772.04 and 219,997.04 is: 330,092.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,724.14 : 629,772.04 = 219,997.04 : x
  2. Step 2: Convert to fraction form
    419,724.14/629,772.04 = 219,997.04/x
  3. Step 3: Cross multiply
    419,724.14x = 629,772.04 × 219,997.04
  4. Step 4: Simplify right side
    419,724.14x = 138,547,984,674.76
  5. Step 5: Solve for x
    x = 138,547,984,674.76/419,724.14
  6. Step 6: Final answer
    x = 330,092.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.