Home / 419,724.06-629,771.58-219,996.69

Finding the Fourth Proportional to 419,724.06, 629,771.58 and 219,996.69

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Solution

The fourth proportional to 419,724.06, 629,771.58 and 219,996.69 is: 330,092.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,724.06 : 629,771.58 = 219,996.69 : x
  2. Step 2: Convert to fraction form
    419,724.06/629,771.58 = 219,996.69/x
  3. Step 3: Cross multiply
    419,724.06x = 629,771.58 × 219,996.69
  4. Step 4: Simplify right side
    419,724.06x = 138,547,663,056.07
  5. Step 5: Solve for x
    x = 138,547,663,056.07/419,724.06
  6. Step 6: Final answer
    x = 330,092.26

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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.