Finding the Fourth Proportional to 1,273,405.21, 1,757,428.11 and 729,613.12
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Solution
The fourth proportional to 1,273,405.21, 1,757,428.11 and 729,613.12 is: 1,006,939.97
Step by Step Solution
- Step 1: Write the proportion equation
1,273,405.21 : 1,757,428.11 = 729,613.12 : x - Step 2: Convert to fraction form
1,273,405.21/1,757,428.11 = 729,613.12/x - Step 3: Cross multiply
1,273,405.21x = 1,757,428.11 × 729,613.12 - Step 4: Simplify right side
1,273,405.21x = 1,282,242,606,512.80 - Step 5: Solve for x
x = 1,282,242,606,512.80/1,273,405.21 - Step 6: Final answer
x = 1,006,939.97
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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.