Home / 947,879.73-1,308,074.18-518,161.59

Finding the Fourth Proportional to 947,879.73, 1,308,074.18 and 518,161.59

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Solution

The fourth proportional to 947,879.73, 1,308,074.18 and 518,161.59 is: 715,063.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,879.73 : 1,308,074.18 = 518,161.59 : x
  2. Step 2: Convert to fraction form
    947,879.73/1,308,074.18 = 518,161.59/x
  3. Step 3: Cross multiply
    947,879.73x = 1,308,074.18 × 518,161.59
  4. Step 4: Simplify right side
    947,879.73x = 677,793,794,355.94
  5. Step 5: Solve for x
    x = 677,793,794,355.94/947,879.73
  6. Step 6: Final answer
    x = 715,063.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.