Home / 685,166.70-1,027,750.05-330,216.60

Finding the Fourth Proportional to 685,166.70, 1,027,750.05 and 330,216.60

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Solution

The fourth proportional to 685,166.70, 1,027,750.05 and 330,216.60 is: 495,324.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,166.70 : 1,027,750.05 = 330,216.60 : x
  2. Step 2: Convert to fraction form
    685,166.70/1,027,750.05 = 330,216.60/x
  3. Step 3: Cross multiply
    685,166.70x = 1,027,750.05 × 330,216.60
  4. Step 4: Simplify right side
    685,166.70x = 339,380,127,160.83
  5. Step 5: Solve for x
    x = 339,380,127,160.83/685,166.70
  6. Step 6: Final answer
    x = 495,324.90

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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.