Home / 1,309,619.20-1,963,046.40-747,443.20

Finding the Fourth Proportional to 1,309,619.20, 1,963,046.40 and 747,443.20

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Solution

The fourth proportional to 1,309,619.20, 1,963,046.40 and 747,443.20 is: 1,120,375.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,619.20 : 1,963,046.40 = 747,443.20 : x
  2. Step 2: Convert to fraction form
    1,309,619.20/1,963,046.40 = 747,443.20/x
  3. Step 3: Cross multiply
    1,309,619.20x = 1,963,046.40 × 747,443.20
  4. Step 4: Simplify right side
    1,309,619.20x = 1,467,265,682,964.48
  5. Step 5: Solve for x
    x = 1,467,265,682,964.48/1,309,619.20
  6. Step 6: Final answer
    x = 1,120,375.82

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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.