Home / 1,108,991.44-1,664,230.20-389,335.28

Finding the Fourth Proportional to 1,108,991.44, 1,664,230.20 and 389,335.28

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Solution

The fourth proportional to 1,108,991.44, 1,664,230.20 and 389,335.28 is: 584,263.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,991.44 : 1,664,230.20 = 389,335.28 : x
  2. Step 2: Convert to fraction form
    1,108,991.44/1,664,230.20 = 389,335.28/x
  3. Step 3: Cross multiply
    1,108,991.44x = 1,664,230.20 × 389,335.28
  4. Step 4: Simplify right side
    1,108,991.44x = 647,943,530,901.46
  5. Step 5: Solve for x
    x = 647,943,530,901.46/1,108,991.44
  6. Step 6: Final answer
    x = 584,263.78

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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.