Finding the Fourth Proportional to 557,787.69, 769,752.99 and 303,138.99
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Solution
The fourth proportional to 557,787.69, 769,752.99 and 303,138.99 is: 418,335.05
Step by Step Solution
- Step 1: Write the proportion equation
557,787.69 : 769,752.99 = 303,138.99 : x - Step 2: Convert to fraction form
557,787.69/769,752.99 = 303,138.99/x - Step 3: Cross multiply
557,787.69x = 769,752.99 × 303,138.99 - Step 4: Simplify right side
557,787.69x = 233,342,143,938.08 - Step 5: Solve for x
x = 233,342,143,938.08/557,787.69 - Step 6: Final answer
x = 418,335.05
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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.