Finding the Fourth Proportional to 1,119,418.68, 1,543,578.12 and 756,212.22
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Solution
The fourth proportional to 1,119,418.68, 1,543,578.12 and 756,212.22 is: 1,042,748.94
Step by Step Solution
- Step 1: Write the proportion equation
1,119,418.68 : 1,543,578.12 = 756,212.22 : x - Step 2: Convert to fraction form
1,119,418.68/1,543,578.12 = 756,212.22/x - Step 3: Cross multiply
1,119,418.68x = 1,543,578.12 × 756,212.22 - Step 4: Simplify right side
1,119,418.68x = 1,167,272,636,868.63 - Step 5: Solve for x
x = 1,167,272,636,868.63/1,119,418.68 - Step 6: Final answer
x = 1,042,748.94
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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.