Finding the Fourth Proportional to 543,228.12, 815,642.06 and 303,811.09
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Solution
The fourth proportional to 543,228.12, 815,642.06 and 303,811.09 is: 456,163.98
Step by Step Solution
- Step 1: Write the proportion equation
543,228.12 : 815,642.06 = 303,811.09 : x - Step 2: Convert to fraction form
543,228.12/815,642.06 = 303,811.09/x - Step 3: Cross multiply
543,228.12x = 815,642.06 × 303,811.09 - Step 4: Simplify right side
543,228.12x = 247,801,099,740.29 - Step 5: Solve for x
x = 247,801,099,740.29/543,228.12 - Step 6: Final answer
x = 456,163.98
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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.