Finding the Fourth Proportional to 694,618.79, 958,625.42 and 388,725.84
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Solution
The fourth proportional to 694,618.79, 958,625.42 and 388,725.84 is: 536,470.48
Step by Step Solution
- Step 1: Write the proportion equation
694,618.79 : 958,625.42 = 388,725.84 : x - Step 2: Convert to fraction form
694,618.79/958,625.42 = 388,725.84/x - Step 3: Cross multiply
694,618.79x = 958,625.42 × 388,725.84 - Step 4: Simplify right side
694,618.79x = 372,642,469,691.22 - Step 5: Solve for x
x = 372,642,469,691.22/694,618.79 - Step 6: Final answer
x = 536,470.48
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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.