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Finding the Fourth Proportional to 1,613,662.02, 2,419,721.37 and 939,935.61

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Solution

The fourth proportional to 1,613,662.02, 2,419,721.37 and 939,935.61 is: 1,409,453.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613,662.02 : 2,419,721.37 = 939,935.61 : x
  2. Step 2: Convert to fraction form
    1,613,662.02/2,419,721.37 = 939,935.61/x
  3. Step 3: Cross multiply
    1,613,662.02x = 2,419,721.37 × 939,935.61
  4. Step 4: Simplify right side
    1,613,662.02x = 2,274,382,281,940.99
  5. Step 5: Solve for x
    x = 2,274,382,281,940.99/1,613,662.02
  6. Step 6: Final answer
    x = 1,409,453.93

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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.