Finding the Fourth Proportional to 1,122,042.19, 1,683,078.17 and 374,088.43
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Solution
The fourth proportional to 1,122,042.19, 1,683,078.17 and 374,088.43 is: 561,137.61
Step by Step Solution
- Step 1: Write the proportion equation
1,122,042.19 : 1,683,078.17 = 374,088.43 : x - Step 2: Convert to fraction form
1,122,042.19/1,683,078.17 = 374,088.43/x - Step 3: Cross multiply
1,122,042.19x = 1,683,078.17 × 374,088.43 - Step 4: Simplify right side
1,122,042.19x = 629,620,073,922.66 - Step 5: Solve for x
x = 629,620,073,922.66/1,122,042.19 - Step 6: Final answer
x = 561,137.61
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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.