Home / 459,913.27-690,314.82-331,961.47

Finding the Fourth Proportional to 459,913.27, 690,314.82 and 331,961.47

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Solution

The fourth proportional to 459,913.27, 690,314.82 and 331,961.47 is: 498,263.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,913.27 : 690,314.82 = 331,961.47 : x
  2. Step 2: Convert to fraction form
    459,913.27/690,314.82 = 331,961.47/x
  3. Step 3: Cross multiply
    459,913.27x = 690,314.82 × 331,961.47
  4. Step 4: Simplify right side
    459,913.27x = 229,157,922,409.99
  5. Step 5: Solve for x
    x = 229,157,922,409.99/459,913.27
  6. Step 6: Final answer
    x = 498,263.34

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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.