Finding the Fourth Proportional to 1,211,938.26, 1,672,399.68 and 668,045.94
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Solution
The fourth proportional to 1,211,938.26, 1,672,399.68 and 668,045.94 is: 921,861.99
Step by Step Solution
- Step 1: Write the proportion equation
1,211,938.26 : 1,672,399.68 = 668,045.94 : x - Step 2: Convert to fraction form
1,211,938.26/1,672,399.68 = 668,045.94/x - Step 3: Cross multiply
1,211,938.26x = 1,672,399.68 × 668,045.94 - Step 4: Simplify right side
1,211,938.26x = 1,117,239,816,281.30 - Step 5: Solve for x
x = 1,117,239,816,281.30/1,211,938.26 - Step 6: Final answer
x = 921,861.99
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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.