Home / 1,079,453.09-1,619,960.92-422,279.60

Finding the Fourth Proportional to 1,079,453.09, 1,619,960.92 and 422,279.60

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Solution

The fourth proportional to 1,079,453.09, 1,619,960.92 and 422,279.60 is: 633,725.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,453.09 : 1,619,960.92 = 422,279.60 : x
  2. Step 2: Convert to fraction form
    1,079,453.09/1,619,960.92 = 422,279.60/x
  3. Step 3: Cross multiply
    1,079,453.09x = 1,619,960.92 × 422,279.60
  4. Step 4: Simplify right side
    1,079,453.09x = 684,076,455,635.98
  5. Step 5: Solve for x
    x = 684,076,455,635.98/1,079,453.09
  6. Step 6: Final answer
    x = 633,725.04

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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.