Home / 820,175.40-1,230,435.90-259,266.60

Finding the Fourth Proportional to 820,175.40, 1,230,435.90 and 259,266.60

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Solution

The fourth proportional to 820,175.40, 1,230,435.90 and 259,266.60 is: 388,954.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,175.40 : 1,230,435.90 = 259,266.60 : x
  2. Step 2: Convert to fraction form
    820,175.40/1,230,435.90 = 259,266.60/x
  3. Step 3: Cross multiply
    820,175.40x = 1,230,435.90 × 259,266.60
  4. Step 4: Simplify right side
    820,175.40x = 319,010,932,310.94
  5. Step 5: Solve for x
    x = 319,010,932,310.94/820,175.40
  6. Step 6: Final answer
    x = 388,954.52

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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.