Home / 481,537.92-664,301.85-311,826.72

Finding the Fourth Proportional to 481,537.92, 664,301.85 and 311,826.72

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Solution

The fourth proportional to 481,537.92, 664,301.85 and 311,826.72 is: 430,178.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,537.92 : 664,301.85 = 311,826.72 : x
  2. Step 2: Convert to fraction form
    481,537.92/664,301.85 = 311,826.72/x
  3. Step 3: Cross multiply
    481,537.92x = 664,301.85 × 311,826.72
  4. Step 4: Simplify right side
    481,537.92x = 207,147,066,975.43
  5. Step 5: Solve for x
    x = 207,147,066,975.43/481,537.92
  6. Step 6: Final answer
    x = 430,178.10

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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.