Home / 481,054.38-721,464.93-200,418.54

Finding the Fourth Proportional to 481,054.38, 721,464.93 and 200,418.54

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Solution

The fourth proportional to 481,054.38, 721,464.93 and 200,418.54 is: 300,579.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,054.38 : 721,464.93 = 200,418.54 : x
  2. Step 2: Convert to fraction form
    481,054.38/721,464.93 = 200,418.54/x
  3. Step 3: Cross multiply
    481,054.38x = 721,464.93 × 200,418.54
  4. Step 4: Simplify right side
    481,054.38x = 144,594,947,931.80
  5. Step 5: Solve for x
    x = 144,594,947,931.80/481,054.38
  6. Step 6: Final answer
    x = 300,579.22

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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.