Home / 685,150.70-1,027,726.05-330,200.60

Finding the Fourth Proportional to 685,150.70, 1,027,726.05 and 330,200.60

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Solution

The fourth proportional to 685,150.70, 1,027,726.05 and 330,200.60 is: 495,300.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,150.70 : 1,027,726.05 = 330,200.60 : x
  2. Step 2: Convert to fraction form
    685,150.70/1,027,726.05 = 330,200.60/x
  3. Step 3: Cross multiply
    685,150.70x = 1,027,726.05 × 330,200.60
  4. Step 4: Simplify right side
    685,150.70x = 339,355,758,345.63
  5. Step 5: Solve for x
    x = 339,355,758,345.63/685,150.70
  6. Step 6: Final answer
    x = 495,300.90

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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.