Finding the Fourth Proportional to 863,390.96, 1,294,347.76 and 331,293.84
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Solution
The fourth proportional to 863,390.96, 1,294,347.76 and 331,293.84 is: 496,657.32
Step by Step Solution
- Step 1: Write the proportion equation
863,390.96 : 1,294,347.76 = 331,293.84 : x - Step 2: Convert to fraction form
863,390.96/1,294,347.76 = 331,293.84/x - Step 3: Cross multiply
863,390.96x = 1,294,347.76 × 331,293.84 - Step 4: Simplify right side
863,390.96x = 428,809,439,705.80 - Step 5: Solve for x
x = 428,809,439,705.80/863,390.96 - Step 6: Final answer
x = 496,657.32
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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.