Home / 481,538.92-664,303.23-311,827.72

Finding the Fourth Proportional to 481,538.92, 664,303.23 and 311,827.72

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Solution

The fourth proportional to 481,538.92, 664,303.23 and 311,827.72 is: 430,179.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,538.92 : 664,303.23 = 311,827.72 : x
  2. Step 2: Convert to fraction form
    481,538.92/664,303.23 = 311,827.72/x
  3. Step 3: Cross multiply
    481,538.92x = 664,303.23 × 311,827.72
  4. Step 4: Simplify right side
    481,538.92x = 207,148,161,599.54
  5. Step 5: Solve for x
    x = 207,148,161,599.54/481,538.92
  6. Step 6: Final answer
    x = 430,179.48

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1.5x scale

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.