Home / 426,819.24-640,146.71-199,052.33

Finding the Fourth Proportional to 426,819.24, 640,146.71 and 199,052.33

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Solution

The fourth proportional to 426,819.24, 640,146.71 and 199,052.33 is: 298,540.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,819.24 : 640,146.71 = 199,052.33 : x
  2. Step 2: Convert to fraction form
    426,819.24/640,146.71 = 199,052.33/x
  3. Step 3: Cross multiply
    426,819.24x = 640,146.71 × 199,052.33
  4. Step 4: Simplify right side
    426,819.24x = 127,422,693,172.07
  5. Step 5: Solve for x
    x = 127,422,693,172.07/426,819.24
  6. Step 6: Final answer
    x = 298,540.18

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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.