Finding the Fourth Proportional to 780,193.98, 1,076,654.97 and 436,034.70
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Solution
The fourth proportional to 780,193.98, 1,076,654.97 and 436,034.70 is: 601,720.78
Step by Step Solution
- Step 1: Write the proportion equation
780,193.98 : 1,076,654.97 = 436,034.70 : x - Step 2: Convert to fraction form
780,193.98/1,076,654.97 = 436,034.70/x - Step 3: Cross multiply
780,193.98x = 1,076,654.97 × 436,034.70 - Step 4: Simplify right side
780,193.98x = 469,458,926,847.46 - Step 5: Solve for x
x = 469,458,926,847.46/780,193.98 - Step 6: Final answer
x = 601,720.78
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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.