Home / 816,296.80-1,225,028.40-343,321.60

Finding the Fourth Proportional to 816,296.80, 1,225,028.40 and 343,321.60

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Solution

The fourth proportional to 816,296.80, 1,225,028.40 and 343,321.60 is: 515,227.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,296.80 : 1,225,028.40 = 343,321.60 : x
  2. Step 2: Convert to fraction form
    816,296.80/1,225,028.40 = 343,321.60/x
  3. Step 3: Cross multiply
    816,296.80x = 1,225,028.40 × 343,321.60
  4. Step 4: Simplify right side
    816,296.80x = 420,578,710,333.44
  5. Step 5: Solve for x
    x = 420,578,710,333.44/816,296.80
  6. Step 6: Final answer
    x = 515,227.68

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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.