Home / 1,311,414.36-1,966,949.26-412,860.80

Finding the Fourth Proportional to 1,311,414.36, 1,966,949.26 and 412,860.80

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Solution

The fourth proportional to 1,311,414.36, 1,966,949.26 and 412,860.80 is: 619,236.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,414.36 : 1,966,949.26 = 412,860.80 : x
  2. Step 2: Convert to fraction form
    1,311,414.36/1,966,949.26 = 412,860.80/x
  3. Step 3: Cross multiply
    1,311,414.36x = 1,966,949.26 × 412,860.80
  4. Step 4: Simplify right side
    1,311,414.36x = 812,076,245,043.01
  5. Step 5: Solve for x
    x = 812,076,245,043.01/1,311,414.36
  6. Step 6: Final answer
    x = 619,236.96

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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.