Finding the Fourth Proportional to 780,043.63, 1,076,791.67 and 474,217.68
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Solution
The fourth proportional to 780,043.63, 1,076,791.67 and 474,217.68 is: 654,621.90
Step by Step Solution
- Step 1: Write the proportion equation
780,043.63 : 1,076,791.67 = 474,217.68 : x - Step 2: Convert to fraction form
780,043.63/1,076,791.67 = 474,217.68/x - Step 3: Cross multiply
780,043.63x = 1,076,791.67 × 474,217.68 - Step 4: Simplify right side
780,043.63x = 510,633,643,490.89 - Step 5: Solve for x
x = 510,633,643,490.89/780,043.63 - Step 6: Final answer
x = 654,621.90
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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.