Finding the Fourth Proportional to 889,680.77, 1,334,245.18 and 320,987.94
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Solution
The fourth proportional to 889,680.77, 1,334,245.18 and 320,987.94 is: 481,382.34
Step by Step Solution
- Step 1: Write the proportion equation
889,680.77 : 1,334,245.18 = 320,987.94 : x - Step 2: Convert to fraction form
889,680.77/1,334,245.18 = 320,987.94/x - Step 3: Cross multiply
889,680.77x = 1,334,245.18 × 320,987.94 - Step 4: Simplify right side
889,680.77x = 428,276,611,783.13 - Step 5: Solve for x
x = 428,276,611,783.13/889,680.77 - Step 6: Final answer
x = 481,382.34
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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.