Home / 1,238,321.24-1,857,924.30-752,990.81

Finding the Fourth Proportional to 1,238,321.24, 1,857,924.30 and 752,990.81

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Solution

The fourth proportional to 1,238,321.24, 1,857,924.30 and 752,990.81 is: 1,129,755.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,321.24 : 1,857,924.30 = 752,990.81 : x
  2. Step 2: Convert to fraction form
    1,238,321.24/1,857,924.30 = 752,990.81/x
  3. Step 3: Cross multiply
    1,238,321.24x = 1,857,924.30 × 752,990.81
  4. Step 4: Simplify right side
    1,238,321.24x = 1,398,999,914,286.06
  5. Step 5: Solve for x
    x = 1,398,999,914,286.06/1,238,321.24
  6. Step 6: Final answer
    x = 1,129,755.25

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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.