Home / 457,260.12-685,911.24-220,801.68

Finding the Fourth Proportional to 457,260.12, 685,911.24 and 220,801.68

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Solution

The fourth proportional to 457,260.12, 685,911.24 and 220,801.68 is: 331,212.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,260.12 : 685,911.24 = 220,801.68 : x
  2. Step 2: Convert to fraction form
    457,260.12/685,911.24 = 220,801.68/x
  3. Step 3: Cross multiply
    457,260.12x = 685,911.24 × 220,801.68
  4. Step 4: Simplify right side
    457,260.12x = 151,450,354,122.88
  5. Step 5: Solve for x
    x = 151,450,354,122.88/457,260.12
  6. Step 6: Final answer
    x = 331,212.69

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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.