Home / 721,129.53-1,081,696.14-294,665.37

Finding the Fourth Proportional to 721,129.53, 1,081,696.14 and 294,665.37

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Solution

The fourth proportional to 721,129.53, 1,081,696.14 and 294,665.37 is: 441,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,129.53 : 1,081,696.14 = 294,665.37 : x
  2. Step 2: Convert to fraction form
    721,129.53/1,081,696.14 = 294,665.37/x
  3. Step 3: Cross multiply
    721,129.53x = 1,081,696.14 × 294,665.37
  4. Step 4: Simplify right side
    721,129.53x = 318,738,387,912.19
  5. Step 5: Solve for x
    x = 318,738,387,912.19/721,129.53
  6. Step 6: Final answer
    x = 441,998.80

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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.