Finding the Fourth Proportional to 770,770.20, 1,063,876.86 and 448,542.84
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Solution
The fourth proportional to 770,770.20, 1,063,876.86 and 448,542.84 is: 619,113.65
Step by Step Solution
- Step 1: Write the proportion equation
770,770.20 : 1,063,876.86 = 448,542.84 : x - Step 2: Convert to fraction form
770,770.20/1,063,876.86 = 448,542.84/x - Step 3: Cross multiply
770,770.20x = 1,063,876.86 × 448,542.84 - Step 4: Simplify right side
770,770.20x = 477,194,348,194.68 - Step 5: Solve for x
x = 477,194,348,194.68/770,770.20 - Step 6: Final answer
x = 619,113.65
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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.