Finding the Fourth Proportional to 494,075.44, 681,572.64 and 312,482.08
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Solution
The fourth proportional to 494,075.44, 681,572.64 and 312,482.08 is: 431,066.23
Step by Step Solution
- Step 1: Write the proportion equation
494,075.44 : 681,572.64 = 312,482.08 : x - Step 2: Convert to fraction form
494,075.44/681,572.64 = 312,482.08/x - Step 3: Cross multiply
494,075.44x = 681,572.64 × 312,482.08 - Step 4: Simplify right side
494,075.44x = 212,979,236,218.29 - Step 5: Solve for x
x = 212,979,236,218.29/494,075.44 - Step 6: Final answer
x = 431,066.23
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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.