Home / 818,810.37-1,228,216.77-419,233.32

Finding the Fourth Proportional to 818,810.37, 1,228,216.77 and 419,233.32

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Solution

The fourth proportional to 818,810.37, 1,228,216.77 and 419,233.32 is: 628,850.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,810.37 : 1,228,216.77 = 419,233.32 : x
  2. Step 2: Convert to fraction form
    818,810.37/1,228,216.77 = 419,233.32/x
  3. Step 3: Cross multiply
    818,810.37x = 1,228,216.77 × 419,233.32
  4. Step 4: Simplify right side
    818,810.37x = 514,909,394,166.78
  5. Step 5: Solve for x
    x = 514,909,394,166.78/818,810.37
  6. Step 6: Final answer
    x = 628,850.60

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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.