Finding the Fourth Proportional to 770,409.92, 1,155,759.52 and 349,715.36
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Solution
The fourth proportional to 770,409.92, 1,155,759.52 and 349,715.36 is: 524,638.70
Step by Step Solution
- Step 1: Write the proportion equation
770,409.92 : 1,155,759.52 = 349,715.36 : x - Step 2: Convert to fraction form
770,409.92/1,155,759.52 = 349,715.36/x - Step 3: Cross multiply
770,409.92x = 1,155,759.52 × 349,715.36 - Step 4: Simplify right side
770,409.92x = 404,186,856,610.23 - Step 5: Solve for x
x = 404,186,856,610.23/770,409.92 - Step 6: Final answer
x = 524,638.70
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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.