Home / 823,828.53-1,235,940.09-343,789.30

Finding the Fourth Proportional to 823,828.53, 1,235,940.09 and 343,789.30

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Solution

The fourth proportional to 823,828.53, 1,235,940.09 and 343,789.30 is: 515,766.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,828.53 : 1,235,940.09 = 343,789.30 : x
  2. Step 2: Convert to fraction form
    823,828.53/1,235,940.09 = 343,789.30/x
  3. Step 3: Cross multiply
    823,828.53x = 1,235,940.09 × 343,789.30
  4. Step 4: Simplify right side
    823,828.53x = 424,902,978,638.75
  5. Step 5: Solve for x
    x = 424,902,978,638.75/823,828.53
  6. Step 6: Final answer
    x = 515,766.28

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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.