Finding the Fourth Proportional to 612,379.11, 918,464.97 and 185,812.05
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Solution
The fourth proportional to 612,379.11, 918,464.97 and 185,812.05 is: 278,686.61
Step by Step Solution
- Step 1: Write the proportion equation
612,379.11 : 918,464.97 = 185,812.05 : x - Step 2: Convert to fraction form
612,379.11/918,464.97 = 185,812.05/x - Step 3: Cross multiply
612,379.11x = 918,464.97 × 185,812.05 - Step 4: Simplify right side
612,379.11x = 170,661,858,928.89 - Step 5: Solve for x
x = 170,661,858,928.89/612,379.11 - Step 6: Final answer
x = 278,686.61
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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.