Finding the Fourth Proportional to 681,108.36, 939,862.26 and 379,330.44
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Solution
The fourth proportional to 681,108.36, 939,862.26 and 379,330.44 is: 523,438.54
Step by Step Solution
- Step 1: Write the proportion equation
681,108.36 : 939,862.26 = 379,330.44 : x - Step 2: Convert to fraction form
681,108.36/939,862.26 = 379,330.44/x - Step 3: Cross multiply
681,108.36x = 939,862.26 × 379,330.44 - Step 4: Simplify right side
681,108.36x = 356,518,364,625.19 - Step 5: Solve for x
x = 356,518,364,625.19/681,108.36 - Step 6: Final answer
x = 523,438.54
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1.5x scale
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.