Home / 1,330,835.20-1,995,928.80-384,107.20

Finding the Fourth Proportional to 1,330,835.20, 1,995,928.80 and 384,107.20

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Solution

The fourth proportional to 1,330,835.20, 1,995,928.80 and 384,107.20 is: 576,067.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,835.20 : 1,995,928.80 = 384,107.20 : x
  2. Step 2: Convert to fraction form
    1,330,835.20/1,995,928.80 = 384,107.20/x
  3. Step 3: Cross multiply
    1,330,835.20x = 1,995,928.80 × 384,107.20
  4. Step 4: Simplify right side
    1,330,835.20x = 766,650,622,767.36
  5. Step 5: Solve for x
    x = 766,650,622,767.36/1,330,835.20
  6. Step 6: Final answer
    x = 576,067.29

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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.