Finding the Fourth Proportional to 655,912.62, 905,164.47 and 369,405.90
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Solution
The fourth proportional to 655,912.62, 905,164.47 and 369,405.90 is: 509,782.99
Step by Step Solution
- Step 1: Write the proportion equation
655,912.62 : 905,164.47 = 369,405.90 : x - Step 2: Convert to fraction form
655,912.62/905,164.47 = 369,405.90/x - Step 3: Cross multiply
655,912.62x = 905,164.47 × 369,405.90 - Step 4: Simplify right side
655,912.62x = 334,373,095,688.37 - Step 5: Solve for x
x = 334,373,095,688.37/655,912.62 - Step 6: Final answer
x = 509,782.99
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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.