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Finding the Fourth Proportional to 1,407,517.02, 1,942,321.44 and 762,923.37

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Solution

The fourth proportional to 1,407,517.02, 1,942,321.44 and 762,923.37 is: 1,052,806.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,517.02 : 1,942,321.44 = 762,923.37 : x
  2. Step 2: Convert to fraction form
    1,407,517.02/1,942,321.44 = 762,923.37/x
  3. Step 3: Cross multiply
    1,407,517.02x = 1,942,321.44 × 762,923.37
  4. Step 4: Simplify right side
    1,407,517.02x = 1,481,842,418,628.05
  5. Step 5: Solve for x
    x = 1,481,842,418,628.05/1,407,517.02
  6. Step 6: Final answer
    x = 1,052,806.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.