Home / 386,517.60-579,506.40-228,664.80

Finding the Fourth Proportional to 386,517.60, 579,506.40 and 228,664.80

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Solution

The fourth proportional to 386,517.60, 579,506.40 and 228,664.80 is: 342,837.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,517.60 : 579,506.40 = 228,664.80 : x
  2. Step 2: Convert to fraction form
    386,517.60/579,506.40 = 228,664.80/x
  3. Step 3: Cross multiply
    386,517.60x = 579,506.40 × 228,664.80
  4. Step 4: Simplify right side
    386,517.60x = 132,512,715,054.72
  5. Step 5: Solve for x
    x = 132,512,715,054.72/386,517.60
  6. Step 6: Final answer
    x = 342,837.47

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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.