Finding the Fourth Proportional to 2,158,538.49, 3,237,243.62 and 641,813.09
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Solution
The fourth proportional to 2,158,538.49, 3,237,243.62 and 641,813.09 is: 962,551.89
Step by Step Solution
- Step 1: Write the proportion equation
2,158,538.49 : 3,237,243.62 = 641,813.09 : x - Step 2: Convert to fraction form
2,158,538.49/3,237,243.62 = 641,813.09/x - Step 3: Cross multiply
2,158,538.49x = 3,237,243.62 × 641,813.09 - Step 4: Simplify right side
2,158,538.49x = 2,077,705,311,439.70 - Step 5: Solve for x
x = 2,077,705,311,439.70/2,158,538.49 - Step 6: Final answer
x = 962,551.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.