Home / 1,310,520.26-1,965,778.74-412,040.44

Finding the Fourth Proportional to 1,310,520.26, 1,965,778.74 and 412,040.44

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Solution

The fourth proportional to 1,310,520.26, 1,965,778.74 and 412,040.44 is: 618,060.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,520.26 : 1,965,778.74 = 412,040.44 : x
  2. Step 2: Convert to fraction form
    1,310,520.26/1,965,778.74 = 412,040.44/x
  3. Step 3: Cross multiply
    1,310,520.26x = 1,965,778.74 × 412,040.44
  4. Step 4: Simplify right side
    1,310,520.26x = 809,980,336,972.25
  5. Step 5: Solve for x
    x = 809,980,336,972.25/1,310,520.26
  6. Step 6: Final answer
    x = 618,060.14

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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.