Home / 905,176.80-1,356,901.20-336,405.60

Finding the Fourth Proportional to 905,176.80, 1,356,901.20 and 336,405.60

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Solution

The fourth proportional to 905,176.80, 1,356,901.20 and 336,405.60 is: 504,287.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,176.80 : 1,356,901.20 = 336,405.60 : x
  2. Step 2: Convert to fraction form
    905,176.80/1,356,901.20 = 336,405.60/x
  3. Step 3: Cross multiply
    905,176.80x = 1,356,901.20 × 336,405.60
  4. Step 4: Simplify right side
    905,176.80x = 456,469,162,326.72
  5. Step 5: Solve for x
    x = 456,469,162,326.72/905,176.80
  6. Step 6: Final answer
    x = 504,287.30

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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.