Home / 685,991.20-1,028,571.24-306,841.27

Finding the Fourth Proportional to 685,991.20, 1,028,571.24 and 306,841.27

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Solution

The fourth proportional to 685,991.20, 1,028,571.24 and 306,841.27 is: 460,076.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,991.20 : 1,028,571.24 = 306,841.27 : x
  2. Step 2: Convert to fraction form
    685,991.20/1,028,571.24 = 306,841.27/x
  3. Step 3: Cross multiply
    685,991.20x = 1,028,571.24 × 306,841.27
  4. Step 4: Simplify right side
    685,991.20x = 315,608,105,567.08
  5. Step 5: Solve for x
    x = 315,608,105,567.08/685,991.20
  6. Step 6: Final answer
    x = 460,076.03

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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.