Home / 459,913.77-690,315.57-331,961.97

Finding the Fourth Proportional to 459,913.77, 690,315.57 and 331,961.97

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Solution

The fourth proportional to 459,913.77, 690,315.57 and 331,961.97 is: 498,264.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,913.77 : 690,315.57 = 331,961.97 : x
  2. Step 2: Convert to fraction form
    459,913.77/690,315.57 = 331,961.97/x
  3. Step 3: Cross multiply
    459,913.77x = 690,315.57 × 331,961.97
  4. Step 4: Simplify right side
    459,913.77x = 229,158,516,538.87
  5. Step 5: Solve for x
    x = 229,158,516,538.87/459,913.77
  6. Step 6: Final answer
    x = 498,264.09

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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.