Finding the Fourth Proportional to 991,481.28, 1,368,264.42 and 538,801.44
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Solution
The fourth proportional to 991,481.28, 1,368,264.42 and 538,801.44 is: 743,556.99
Step by Step Solution
- Step 1: Write the proportion equation
991,481.28 : 1,368,264.42 = 538,801.44 : x - Step 2: Convert to fraction form
991,481.28/1,368,264.42 = 538,801.44/x - Step 3: Cross multiply
991,481.28x = 1,368,264.42 × 538,801.44 - Step 4: Simplify right side
991,481.28x = 737,222,839,796.77 - Step 5: Solve for x
x = 737,222,839,796.77/991,481.28 - Step 6: Final answer
x = 743,556.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.