Finding the Fourth Proportional to 904,081.20, 1,356,121.80 and 343,115.70
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Solution
The fourth proportional to 904,081.20, 1,356,121.80 and 343,115.70 is: 514,673.55
Step by Step Solution
- Step 1: Write the proportion equation
904,081.20 : 1,356,121.80 = 343,115.70 : x - Step 2: Convert to fraction form
904,081.20/1,356,121.80 = 343,115.70/x - Step 3: Cross multiply
904,081.20x = 1,356,121.80 × 343,115.70 - Step 4: Simplify right side
904,081.20x = 465,306,680,692.26 - Step 5: Solve for x
x = 465,306,680,692.26/904,081.20 - Step 6: Final answer
x = 514,673.55
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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.