Finding the Fourth Proportional to 1,543,568.67, 2,129,446.23 and 931,379.99
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Solution
The fourth proportional to 1,543,568.67, 2,129,446.23 and 931,379.99 is: 1,284,894.96
Step by Step Solution
- Step 1: Write the proportion equation
1,543,568.67 : 2,129,446.23 = 931,379.99 : x - Step 2: Convert to fraction form
1,543,568.67/2,129,446.23 = 931,379.99/x - Step 3: Cross multiply
1,543,568.67x = 2,129,446.23 × 931,379.99 - Step 4: Simplify right side
1,543,568.67x = 1,983,323,597,755.71 - Step 5: Solve for x
x = 1,983,323,597,755.71/1,543,568.67 - Step 6: Final answer
x = 1,284,894.96
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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.