Finding the Fourth Proportional to 780,361.80, 1,076,986.68 and 440,851.92
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Solution
The fourth proportional to 780,361.80, 1,076,986.68 and 440,851.92 is: 608,425.02
Step by Step Solution
- Step 1: Write the proportion equation
780,361.80 : 1,076,986.68 = 440,851.92 : x - Step 2: Convert to fraction form
780,361.80/1,076,986.68 = 440,851.92/x - Step 3: Cross multiply
780,361.80x = 1,076,986.68 × 440,851.92 - Step 4: Simplify right side
780,361.80x = 474,791,645,692.43 - Step 5: Solve for x
x = 474,791,645,692.43/780,361.80 - Step 6: Final answer
x = 608,425.02
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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.