Finding the Fourth Proportional to 820,276.80, 1,230,415.20 and 649,034.70
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Solution
The fourth proportional to 820,276.80, 1,230,415.20 and 649,034.70 is: 973,552.05
Step by Step Solution
- Step 1: Write the proportion equation
820,276.80 : 1,230,415.20 = 649,034.70 : x - Step 2: Convert to fraction form
820,276.80/1,230,415.20 = 649,034.70/x - Step 3: Cross multiply
820,276.80x = 1,230,415.20 × 649,034.70 - Step 4: Simplify right side
820,276.80x = 798,582,160,207.44 - Step 5: Solve for x
x = 798,582,160,207.44/820,276.80 - Step 6: Final answer
x = 973,552.05
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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.