Finding the Fourth Proportional to 418,809.24, 627,975.12 and 285,850.44
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Solution
The fourth proportional to 418,809.24, 627,975.12 and 285,850.44 is: 428,612.71
Step by Step Solution
- Step 1: Write the proportion equation
418,809.24 : 627,975.12 = 285,850.44 : x - Step 2: Convert to fraction form
418,809.24/627,975.12 = 285,850.44/x - Step 3: Cross multiply
418,809.24x = 627,975.12 × 285,850.44 - Step 4: Simplify right side
418,809.24x = 179,506,964,361.05 - Step 5: Solve for x
x = 179,506,964,361.05/418,809.24 - Step 6: Final answer
x = 428,612.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.