Finding the Fourth Proportional to 914,461.18, 1,261,976.70 and 521,986.12
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Solution
The fourth proportional to 914,461.18, 1,261,976.70 and 521,986.12 is: 720,352.42
Step by Step Solution
- Step 1: Write the proportion equation
914,461.18 : 1,261,976.70 = 521,986.12 : x - Step 2: Convert to fraction form
914,461.18/1,261,976.70 = 521,986.12/x - Step 3: Cross multiply
914,461.18x = 1,261,976.70 × 521,986.12 - Step 4: Simplify right side
914,461.18x = 658,734,321,163.40 - Step 5: Solve for x
x = 658,734,321,163.40/914,461.18 - Step 6: Final answer
x = 720,352.42
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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.