Finding the Fourth Proportional to 889,679.77, 1,334,243.68 and 320,986.94
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Solution
The fourth proportional to 889,679.77, 1,334,243.68 and 320,986.94 is: 481,380.83
Step by Step Solution
- Step 1: Write the proportion equation
889,679.77 : 1,334,243.68 = 320,986.94 : x - Step 2: Convert to fraction form
889,679.77/1,334,243.68 = 320,986.94/x - Step 3: Cross multiply
889,679.77x = 1,334,243.68 × 320,986.94 - Step 4: Simplify right side
889,679.77x = 428,274,788,583.85 - Step 5: Solve for x
x = 428,274,788,583.85/889,679.77 - Step 6: Final answer
x = 481,380.83
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.