Home / 421,745.40-631,918.23-296,823.96

Finding the Fourth Proportional to 421,745.40, 631,918.23 and 296,823.96

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Solution

The fourth proportional to 421,745.40, 631,918.23 and 296,823.96 is: 444,743.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,745.40 : 631,918.23 = 296,823.96 : x
  2. Step 2: Convert to fraction form
    421,745.40/631,918.23 = 296,823.96/x
  3. Step 3: Cross multiply
    421,745.40x = 631,918.23 × 296,823.96
  4. Step 4: Simplify right side
    421,745.40x = 187,568,471,424.79
  5. Step 5: Solve for x
    x = 187,568,471,424.79/421,745.40
  6. Step 6: Final answer
    x = 444,743.37

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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.