Finding the Fourth Proportional to 770,845.88, 1,063,064.45 and 661,915.97
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Solution
The fourth proportional to 770,845.88, 1,063,064.45 and 661,915.97 is: 912,840.49
Step by Step Solution
- Step 1: Write the proportion equation
770,845.88 : 1,063,064.45 = 661,915.97 : x - Step 2: Convert to fraction form
770,845.88/1,063,064.45 = 661,915.97/x - Step 3: Cross multiply
770,845.88x = 1,063,064.45 × 661,915.97 - Step 4: Simplify right side
770,845.88x = 703,659,336,920.23 - Step 5: Solve for x
x = 703,659,336,920.23/770,845.88 - Step 6: Final answer
x = 912,840.49
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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.