Finding the Fourth Proportional to 774,425.21, 1,161,755.66 and 395,138.66
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Solution
The fourth proportional to 774,425.21, 1,161,755.66 and 395,138.66 is: 592,768.12
Step by Step Solution
- Step 1: Write the proportion equation
774,425.21 : 1,161,755.66 = 395,138.66 : x - Step 2: Convert to fraction form
774,425.21/1,161,755.66 = 395,138.66/x - Step 3: Cross multiply
774,425.21x = 1,161,755.66 × 395,138.66 - Step 4: Simplify right side
774,425.21x = 459,054,569,918.88 - Step 5: Solve for x
x = 459,054,569,918.88/774,425.21 - Step 6: Final answer
x = 592,768.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.