Home / 681,873.69-1,022,851.54-208,563.15

Finding the Fourth Proportional to 681,873.69, 1,022,851.54 and 208,563.15

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Solution

The fourth proportional to 681,873.69, 1,022,851.54 and 208,563.15 is: 312,857.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,873.69 : 1,022,851.54 = 208,563.15 : x
  2. Step 2: Convert to fraction form
    681,873.69/1,022,851.54 = 208,563.15/x
  3. Step 3: Cross multiply
    681,873.69x = 1,022,851.54 × 208,563.15
  4. Step 4: Simplify right side
    681,873.69x = 213,329,139,164.75
  5. Step 5: Solve for x
    x = 213,329,139,164.75/681,873.69
  6. Step 6: Final answer
    x = 312,857.27

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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.