Home / 820,613.90-1,230,797.73-259,575.50

Finding the Fourth Proportional to 820,613.90, 1,230,797.73 and 259,575.50

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Solution

The fourth proportional to 820,613.90, 1,230,797.73 and 259,575.50 is: 389,324.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,613.90 : 1,230,797.73 = 259,575.50 : x
  2. Step 2: Convert to fraction form
    820,613.90/1,230,797.73 = 259,575.50/x
  3. Step 3: Cross multiply
    820,613.90x = 1,230,797.73 × 259,575.50
  4. Step 4: Simplify right side
    820,613.90x = 319,484,936,163.62
  5. Step 5: Solve for x
    x = 319,484,936,163.62/820,613.90
  6. Step 6: Final answer
    x = 389,324.30

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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.