Home / 459,834.69-689,744.07-206,936.22

Finding the Fourth Proportional to 459,834.69, 689,744.07 and 206,936.22

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Solution

The fourth proportional to 459,834.69, 689,744.07 and 206,936.22 is: 310,400.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,834.69 : 689,744.07 = 206,936.22 : x
  2. Step 2: Convert to fraction form
    459,834.69/689,744.07 = 206,936.22/x
  3. Step 3: Cross multiply
    459,834.69x = 689,744.07 × 206,936.22
  4. Step 4: Simplify right side
    459,834.69x = 142,733,030,613.22
  5. Step 5: Solve for x
    x = 142,733,030,613.22/459,834.69
  6. Step 6: Final answer
    x = 310,400.75

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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.