Home / 667,481.46-1,001,222.19-312,745.20

Finding the Fourth Proportional to 667,481.46, 1,001,222.19 and 312,745.20

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Solution

The fourth proportional to 667,481.46, 1,001,222.19 and 312,745.20 is: 469,117.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,481.46 : 1,001,222.19 = 312,745.20 : x
  2. Step 2: Convert to fraction form
    667,481.46/1,001,222.19 = 312,745.20/x
  3. Step 3: Cross multiply
    667,481.46x = 1,001,222.19 × 312,745.20
  4. Step 4: Simplify right side
    667,481.46x = 313,127,434,055.99
  5. Step 5: Solve for x
    x = 313,127,434,055.99/667,481.46
  6. Step 6: Final answer
    x = 469,117.80

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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.