Home / 481,867.50-664,986.78-280,676.46

Finding the Fourth Proportional to 481,867.50, 664,986.78 and 280,676.46

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Solution

The fourth proportional to 481,867.50, 664,986.78 and 280,676.46 is: 387,339.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,867.50 : 664,986.78 = 280,676.46 : x
  2. Step 2: Convert to fraction form
    481,867.50/664,986.78 = 280,676.46/x
  3. Step 3: Cross multiply
    481,867.50x = 664,986.78 × 280,676.46
  4. Step 4: Simplify right side
    481,867.50x = 186,646,135,357.20
  5. Step 5: Solve for x
    x = 186,646,135,357.20/481,867.50
  6. Step 6: Final answer
    x = 387,339.12

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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.