Finding the Fourth Proportional to 557,387.73, 769,430.34 and 376,344.63
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Solution
The fourth proportional to 557,387.73, 769,430.34 and 376,344.63 is: 519,514.44
Step by Step Solution
- Step 1: Write the proportion equation
557,387.73 : 769,430.34 = 376,344.63 : x - Step 2: Convert to fraction form
557,387.73/769,430.34 = 376,344.63/x - Step 3: Cross multiply
557,387.73x = 769,430.34 × 376,344.63 - Step 4: Simplify right side
557,387.73x = 289,570,976,618.07 - Step 5: Solve for x
x = 289,570,976,618.07/557,387.73 - Step 6: Final answer
x = 519,514.44
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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.