Home / 1,193,128.36-1,789,972.80-394,409.86

Finding the Fourth Proportional to 1,193,128.36, 1,789,972.80 and 394,409.86

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Solution

The fourth proportional to 1,193,128.36, 1,789,972.80 and 394,409.86 is: 591,707.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193,128.36 : 1,789,972.80 = 394,409.86 : x
  2. Step 2: Convert to fraction form
    1,193,128.36/1,789,972.80 = 394,409.86/x
  3. Step 3: Cross multiply
    1,193,128.36x = 1,789,972.80 × 394,409.86
  4. Step 4: Simplify right side
    1,193,128.36x = 705,982,921,451.81
  5. Step 5: Solve for x
    x = 705,982,921,451.81/1,193,128.36
  6. Step 6: Final answer
    x = 591,707.43

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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.