Finding the Fourth Proportional to 640,174.62, 883,163.44 and 385,378.19
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Solution
The fourth proportional to 640,174.62, 883,163.44 and 385,378.19 is: 531,654.83
Step by Step Solution
- Step 1: Write the proportion equation
640,174.62 : 883,163.44 = 385,378.19 : x - Step 2: Convert to fraction form
640,174.62/883,163.44 = 385,378.19/x - Step 3: Cross multiply
640,174.62x = 883,163.44 × 385,378.19 - Step 4: Simplify right side
640,174.62x = 340,351,927,981.37 - Step 5: Solve for x
x = 340,351,927,981.37/640,174.62 - Step 6: Final answer
x = 531,654.83
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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.