Finding the Fourth Proportional to 674,893.92, 931,321.44 and 368,986.08
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Solution
The fourth proportional to 674,893.92, 931,321.44 and 368,986.08 is: 509,183.20
Step by Step Solution
- Step 1: Write the proportion equation
674,893.92 : 931,321.44 = 368,986.08 : x - Step 2: Convert to fraction form
674,893.92/931,321.44 = 368,986.08/x - Step 3: Cross multiply
674,893.92x = 931,321.44 × 368,986.08 - Step 4: Simplify right side
674,893.92x = 343,644,647,365.56 - Step 5: Solve for x
x = 343,644,647,365.56/674,893.92 - Step 6: Final answer
x = 509,183.20
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.