Home / 1,084,443.20-1,626,353.76-419,439.68

Finding the Fourth Proportional to 1,084,443.20, 1,626,353.76 and 419,439.68

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Solution

The fourth proportional to 1,084,443.20, 1,626,353.76 and 419,439.68 is: 629,039.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,084,443.20 : 1,626,353.76 = 419,439.68 : x
  2. Step 2: Convert to fraction form
    1,084,443.20/1,626,353.76 = 419,439.68/x
  3. Step 3: Cross multiply
    1,084,443.20x = 1,626,353.76 × 419,439.68
  4. Step 4: Simplify right side
    1,084,443.20x = 682,157,300,661.20
  5. Step 5: Solve for x
    x = 682,157,300,661.20/1,084,443.20
  6. Step 6: Final answer
    x = 629,039.22

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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.