Home / 459,834.78-689,551.09-231,990.22

Finding the Fourth Proportional to 459,834.78, 689,551.09 and 231,990.22

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Solution

The fourth proportional to 459,834.78, 689,551.09 and 231,990.22 is: 347,883.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,834.78 : 689,551.09 = 231,990.22 : x
  2. Step 2: Convert to fraction form
    459,834.78/689,551.09 = 231,990.22/x
  3. Step 3: Cross multiply
    459,834.78x = 689,551.09 × 231,990.22
  4. Step 4: Simplify right side
    459,834.78x = 159,969,108,717.89
  5. Step 5: Solve for x
    x = 159,969,108,717.89/459,834.78
  6. Step 6: Final answer
    x = 347,883.88

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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.