Home / 681,119.82-1,021,676.85-207,803.58

Finding the Fourth Proportional to 681,119.82, 1,021,676.85 and 207,803.58

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Solution

The fourth proportional to 681,119.82, 1,021,676.85 and 207,803.58 is: 311,704.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,119.82 : 1,021,676.85 = 207,803.58 : x
  2. Step 2: Convert to fraction form
    681,119.82/1,021,676.85 = 207,803.58/x
  3. Step 3: Cross multiply
    681,119.82x = 1,021,676.85 × 207,803.58
  4. Step 4: Simplify right side
    681,119.82x = 212,308,107,033.12
  5. Step 5: Solve for x
    x = 212,308,107,033.12/681,119.82
  6. Step 6: Final answer
    x = 311,704.49

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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.