Home / 459,912.27-690,313.32-331,960.47

Finding the Fourth Proportional to 459,912.27, 690,313.32 and 331,960.47

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Solution

The fourth proportional to 459,912.27, 690,313.32 and 331,960.47 is: 498,261.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,912.27 : 690,313.32 = 331,960.47 : x
  2. Step 2: Convert to fraction form
    459,912.27/690,313.32 = 331,960.47/x
  3. Step 3: Cross multiply
    459,912.27x = 690,313.32 × 331,960.47
  4. Step 4: Simplify right side
    459,912.27x = 229,156,734,154.46
  5. Step 5: Solve for x
    x = 229,156,734,154.46/459,912.27
  6. Step 6: Final answer
    x = 498,261.84

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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.