Finding the Fourth Proportional to 1,122,042.88, 1,683,079.20 and 374,089.12
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Solution
The fourth proportional to 1,122,042.88, 1,683,079.20 and 374,089.12 is: 561,138.64
Step by Step Solution
- Step 1: Write the proportion equation
1,122,042.88 : 1,683,079.20 = 374,089.12 : x - Step 2: Convert to fraction form
1,122,042.88/1,683,079.20 = 374,089.12/x - Step 3: Cross multiply
1,122,042.88x = 1,683,079.20 × 374,089.12 - Step 4: Simplify right side
1,122,042.88x = 629,621,616,818.30 - Step 5: Solve for x
x = 629,621,616,818.30/1,122,042.88 - Step 6: Final answer
x = 561,138.64
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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.