Finding the Fourth Proportional to 710,628.26, 980,679.84 and 388,351.94
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Solution
The fourth proportional to 710,628.26, 980,679.84 and 388,351.94 is: 535,932.69
Step by Step Solution
- Step 1: Write the proportion equation
710,628.26 : 980,679.84 = 388,351.94 : x - Step 2: Convert to fraction form
710,628.26/980,679.84 = 388,351.94/x - Step 3: Cross multiply
710,628.26x = 980,679.84 × 388,351.94 - Step 4: Simplify right side
710,628.26x = 380,848,918,382.89 - Step 5: Solve for x
x = 380,848,918,382.89/710,628.26 - Step 6: Final answer
x = 535,932.69
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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.