Home / 438,901.26-658,220.66-228,424.38

Finding the Fourth Proportional to 438,901.26, 658,220.66 and 228,424.38

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Solution

The fourth proportional to 438,901.26, 658,220.66 and 228,424.38 is: 342,568.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,901.26 : 658,220.66 = 228,424.38 : x
  2. Step 2: Convert to fraction form
    438,901.26/658,220.66 = 228,424.38/x
  3. Step 3: Cross multiply
    438,901.26x = 658,220.66 × 228,424.38
  4. Step 4: Simplify right side
    438,901.26x = 150,353,643,409.83
  5. Step 5: Solve for x
    x = 150,353,643,409.83/438,901.26
  6. Step 6: Final answer
    x = 342,568.27

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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.