Home / 815,163.60-1,222,745.40-628,539.60

Finding the Fourth Proportional to 815,163.60, 1,222,745.40 and 628,539.60

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Solution

The fourth proportional to 815,163.60, 1,222,745.40 and 628,539.60 is: 942,809.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,163.60 : 1,222,745.40 = 628,539.60 : x
  2. Step 2: Convert to fraction form
    815,163.60/1,222,745.40 = 628,539.60/x
  3. Step 3: Cross multiply
    815,163.60x = 1,222,745.40 × 628,539.60
  4. Step 4: Simplify right side
    815,163.60x = 768,543,904,617.84
  5. Step 5: Solve for x
    x = 768,543,904,617.84/815,163.60
  6. Step 6: Final answer
    x = 942,809.40

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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.