Home / 680,700.84-1,021,172.82-231,398.07

Finding the Fourth Proportional to 680,700.84, 1,021,172.82 and 231,398.07

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Solution

The fourth proportional to 680,700.84, 1,021,172.82 and 231,398.07 is: 347,138.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,700.84 : 1,021,172.82 = 231,398.07 : x
  2. Step 2: Convert to fraction form
    680,700.84/1,021,172.82 = 231,398.07/x
  3. Step 3: Cross multiply
    680,700.84x = 1,021,172.82 × 231,398.07
  4. Step 4: Simplify right side
    680,700.84x = 236,297,419,684.46
  5. Step 5: Solve for x
    x = 236,297,419,684.46/680,700.84
  6. Step 6: Final answer
    x = 347,138.43

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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.