Finding the Fourth Proportional to 397,825.80, 596,738.70 and 319,093.80
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Solution
The fourth proportional to 397,825.80, 596,738.70 and 319,093.80 is: 478,640.70
Step by Step Solution
- Step 1: Write the proportion equation
397,825.80 : 596,738.70 = 319,093.80 : x - Step 2: Convert to fraction form
397,825.80/596,738.70 = 319,093.80/x - Step 3: Cross multiply
397,825.80x = 596,738.70 × 319,093.80 - Step 4: Simplify right side
397,825.80x = 190,415,619,390.06 - Step 5: Solve for x
x = 190,415,619,390.06/397,825.80 - Step 6: Final answer
x = 478,640.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.