Finding the Fourth Proportional to 1,178,705.44, 1,626,613.68 and 642,161.44
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Solution
The fourth proportional to 1,178,705.44, 1,626,613.68 and 642,161.44 is: 886,182.88
Step by Step Solution
- Step 1: Write the proportion equation
1,178,705.44 : 1,626,613.68 = 642,161.44 : x - Step 2: Convert to fraction form
1,178,705.44/1,626,613.68 = 642,161.44/x - Step 3: Cross multiply
1,178,705.44x = 1,626,613.68 × 642,161.44 - Step 4: Simplify right side
1,178,705.44x = 1,044,548,583,072.50 - Step 5: Solve for x
x = 1,044,548,583,072.50/1,178,705.44 - Step 6: Final answer
x = 886,182.88
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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.