Home / 853,205.06-1,280,018.09-254,163.89

Finding the Fourth Proportional to 853,205.06, 1,280,018.09 and 254,163.89

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Solution

The fourth proportional to 853,205.06, 1,280,018.09 and 254,163.89 is: 381,308.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,205.06 : 1,280,018.09 = 254,163.89 : x
  2. Step 2: Convert to fraction form
    853,205.06/1,280,018.09 = 254,163.89/x
  3. Step 3: Cross multiply
    853,205.06x = 1,280,018.09 × 254,163.89
  4. Step 4: Simplify right side
    853,205.06x = 325,334,380,860.23
  5. Step 5: Solve for x
    x = 325,334,380,860.23/853,205.06
  6. Step 6: Final answer
    x = 381,308.54

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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.