Home / 682,410.39-1,023,578.70-209,097.15

Finding the Fourth Proportional to 682,410.39, 1,023,578.70 and 209,097.15

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Solution

The fourth proportional to 682,410.39, 1,023,578.70 and 209,097.15 is: 313,634.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,410.39 : 1,023,578.70 = 209,097.15 : x
  2. Step 2: Convert to fraction form
    682,410.39/1,023,578.70 = 209,097.15/x
  3. Step 3: Cross multiply
    682,410.39x = 1,023,578.70 × 209,097.15
  4. Step 4: Simplify right side
    682,410.39x = 214,027,388,970.71
  5. Step 5: Solve for x
    x = 214,027,388,970.71/682,410.39
  6. Step 6: Final answer
    x = 313,634.42

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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.