Home / 680,855.70-1,021,283.55-207,540.30

Finding the Fourth Proportional to 680,855.70, 1,021,283.55 and 207,540.30

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Solution

The fourth proportional to 680,855.70, 1,021,283.55 and 207,540.30 is: 311,310.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,855.70 : 1,021,283.55 = 207,540.30 : x
  2. Step 2: Convert to fraction form
    680,855.70/1,021,283.55 = 207,540.30/x
  3. Step 3: Cross multiply
    680,855.70x = 1,021,283.55 × 207,540.30
  4. Step 4: Simplify right side
    680,855.70x = 211,957,494,352.07
  5. Step 5: Solve for x
    x = 211,957,494,352.07/680,855.70
  6. Step 6: Final answer
    x = 311,310.45

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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.