Finding the Fourth Proportional to 777,621.13, 1,166,431.69 and 186,645.13
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Solution
The fourth proportional to 777,621.13, 1,166,431.69 and 186,645.13 is: 279,967.69
Step by Step Solution
- Step 1: Write the proportion equation
777,621.13 : 1,166,431.69 = 186,645.13 : x - Step 2: Convert to fraction form
777,621.13/1,166,431.69 = 186,645.13/x - Step 3: Cross multiply
777,621.13x = 1,166,431.69 × 186,645.13 - Step 4: Simplify right side
777,621.13x = 217,708,788,584.01 - Step 5: Solve for x
x = 217,708,788,584.01/777,621.13 - Step 6: Final answer
x = 279,967.69
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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.