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Finding the Fourth Proportional to 459,755.39, 688,736.40 and 259,469.93

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Solution

The fourth proportional to 459,755.39, 688,736.40 and 259,469.93 is: 388,698.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,755.39 : 688,736.40 = 259,469.93 : x
  2. Step 2: Convert to fraction form
    459,755.39/688,736.40 = 259,469.93/x
  3. Step 3: Cross multiply
    459,755.39x = 688,736.40 × 259,469.93
  4. Step 4: Simplify right side
    459,755.39x = 178,706,382,052.77
  5. Step 5: Solve for x
    x = 178,706,382,052.77/459,755.39
  6. Step 6: Final answer
    x = 388,698.83

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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.