Home / 1,288,361.35-1,932,049.95-389,504.35

Finding the Fourth Proportional to 1,288,361.35, 1,932,049.95 and 389,504.35

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Solution

The fourth proportional to 1,288,361.35, 1,932,049.95 and 389,504.35 is: 584,107.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,361.35 : 1,932,049.95 = 389,504.35 : x
  2. Step 2: Convert to fraction form
    1,288,361.35/1,932,049.95 = 389,504.35/x
  3. Step 3: Cross multiply
    1,288,361.35x = 1,932,049.95 × 389,504.35
  4. Step 4: Simplify right side
    1,288,361.35x = 752,541,859,942.28
  5. Step 5: Solve for x
    x = 752,541,859,942.28/1,288,361.35
  6. Step 6: Final answer
    x = 584,107.76

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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.