Finding the Fourth Proportional to 1,226,569.68, 1,839,186.72 and 427,636.44
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Solution
The fourth proportional to 1,226,569.68, 1,839,186.72 and 427,636.44 is: 641,221.84
Step by Step Solution
- Step 1: Write the proportion equation
1,226,569.68 : 1,839,186.72 = 427,636.44 : x - Step 2: Convert to fraction form
1,226,569.68/1,839,186.72 = 427,636.44/x - Step 3: Cross multiply
1,226,569.68x = 1,839,186.72 × 427,636.44 - Step 4: Simplify right side
1,226,569.68x = 786,503,261,436.08 - Step 5: Solve for x
x = 786,503,261,436.08/1,226,569.68 - Step 6: Final answer
x = 641,221.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.