Finding the Fourth Proportional to 1,678,861.15, 2,517,368.32 and 1,146,982.75
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Solution
The fourth proportional to 1,678,861.15, 2,517,368.32 and 1,146,982.75 is: 1,719,843.26
Step by Step Solution
- Step 1: Write the proportion equation
1,678,861.15 : 2,517,368.32 = 1,146,982.75 : x - Step 2: Convert to fraction form
1,678,861.15/2,517,368.32 = 1,146,982.75/x - Step 3: Cross multiply
1,678,861.15x = 2,517,368.32 × 1,146,982.75 - Step 4: Simplify right side
1,678,861.15x = 2,887,378,038,436.48 - Step 5: Solve for x
x = 2,887,378,038,436.48/1,678,861.15 - Step 6: Final answer
x = 1,719,843.26
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.