Finding the Fourth Proportional to 1,284,101.12, 1,771,471.60 and 831,537.92
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Solution
The fourth proportional to 1,284,101.12, 1,771,471.60 and 831,537.92 is: 1,147,141.60
Step by Step Solution
- Step 1: Write the proportion equation
1,284,101.12 : 1,771,471.60 = 831,537.92 : x - Step 2: Convert to fraction form
1,284,101.12/1,771,471.60 = 831,537.92/x - Step 3: Cross multiply
1,284,101.12x = 1,771,471.60 × 831,537.92 - Step 4: Simplify right side
1,284,101.12x = 1,473,045,809,603.07 - Step 5: Solve for x
x = 1,473,045,809,603.07/1,284,101.12 - Step 6: Final answer
x = 1,147,141.60
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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.