Home / 489,942.09-734,539.33-223,516.29

Finding the Fourth Proportional to 489,942.09, 734,539.33 and 223,516.29

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Solution

The fourth proportional to 489,942.09, 734,539.33 and 223,516.29 is: 335,103.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,942.09 : 734,539.33 = 223,516.29 : x
  2. Step 2: Convert to fraction form
    489,942.09/734,539.33 = 223,516.29/x
  3. Step 3: Cross multiply
    489,942.09x = 734,539.33 × 223,516.29
  4. Step 4: Simplify right side
    489,942.09x = 164,181,505,900.69
  5. Step 5: Solve for x
    x = 164,181,505,900.69/489,942.09
  6. Step 6: Final answer
    x = 335,103.90

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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.