Finding the Fourth Proportional to 1,333,282.29, 1,839,916.26 and 721,421.66
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Solution
The fourth proportional to 1,333,282.29, 1,839,916.26 and 721,421.66 is: 995,554.69
Step by Step Solution
- Step 1: Write the proportion equation
1,333,282.29 : 1,839,916.26 = 721,421.66 : x - Step 2: Convert to fraction form
1,333,282.29/1,839,916.26 = 721,421.66/x - Step 3: Cross multiply
1,333,282.29x = 1,839,916.26 × 721,421.66 - Step 4: Simplify right side
1,333,282.29x = 1,327,355,442,550.19 - Step 5: Solve for x
x = 1,327,355,442,550.19/1,333,282.29 - Step 6: Final answer
x = 995,554.69
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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.