Finding the Fourth Proportional to 694,523.25, 958,564.94 and 408,043.26
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Solution
The fourth proportional to 694,523.25, 958,564.94 and 408,043.26 is: 563,171.88
Step by Step Solution
- Step 1: Write the proportion equation
694,523.25 : 958,564.94 = 408,043.26 : x - Step 2: Convert to fraction form
694,523.25/958,564.94 = 408,043.26/x - Step 3: Cross multiply
694,523.25x = 958,564.94 × 408,043.26 - Step 4: Simplify right side
694,523.25x = 391,135,960,999.09 - Step 5: Solve for x
x = 391,135,960,999.09/694,523.25 - Step 6: Final answer
x = 563,171.88
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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.