Finding the Fourth Proportional to 557,560.94, 769,449.84 and 315,843.44
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Solution
The fourth proportional to 557,560.94, 769,449.84 and 315,843.44 is: 435,872.87
Step by Step Solution
- Step 1: Write the proportion equation
557,560.94 : 769,449.84 = 315,843.44 : x - Step 2: Convert to fraction form
557,560.94/769,449.84 = 315,843.44/x - Step 3: Cross multiply
557,560.94x = 769,449.84 × 315,843.44 - Step 4: Simplify right side
557,560.94x = 243,025,684,373.05 - Step 5: Solve for x
x = 243,025,684,373.05/557,560.94 - Step 6: Final answer
x = 435,872.87
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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.