Home / 681,762.54-1,022,643.78-208,447.86

Finding the Fourth Proportional to 681,762.54, 1,022,643.78 and 208,447.86

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Solution

The fourth proportional to 681,762.54, 1,022,643.78 and 208,447.86 is: 312,671.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,762.54 : 1,022,643.78 = 208,447.86 : x
  2. Step 2: Convert to fraction form
    681,762.54/1,022,643.78 = 208,447.86/x
  3. Step 3: Cross multiply
    681,762.54x = 1,022,643.78 × 208,447.86
  4. Step 4: Simplify right side
    681,762.54x = 213,167,907,483.31
  5. Step 5: Solve for x
    x = 213,167,907,483.31/681,762.54
  6. Step 6: Final answer
    x = 312,671.78

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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.