Finding the Fourth Proportional to 831,549.41, 1,147,538.07 and 449,576.19
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Solution
The fourth proportional to 831,549.41, 1,147,538.07 and 449,576.19 is: 620,415.08
Step by Step Solution
- Step 1: Write the proportion equation
831,549.41 : 1,147,538.07 = 449,576.19 : x - Step 2: Convert to fraction form
831,549.41/1,147,538.07 = 449,576.19/x - Step 3: Cross multiply
831,549.41x = 1,147,538.07 × 449,576.19 - Step 4: Simplify right side
831,549.41x = 515,905,793,390.55 - Step 5: Solve for x
x = 515,905,793,390.55/831,549.41 - Step 6: Final answer
x = 620,415.08
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1.5x scale
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.