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Finding the Fourth Proportional to 579,918.84, 800,292.28 and 321,796.80

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Solution

The fourth proportional to 579,918.84, 800,292.28 and 321,796.80 is: 444,081.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,918.84 : 800,292.28 = 321,796.80 : x
  2. Step 2: Convert to fraction form
    579,918.84/800,292.28 = 321,796.80/x
  3. Step 3: Cross multiply
    579,918.84x = 800,292.28 × 321,796.80
  4. Step 4: Simplify right side
    579,918.84x = 257,531,494,768.70
  5. Step 5: Solve for x
    x = 257,531,494,768.70/579,918.84
  6. Step 6: Final answer
    x = 444,081.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.