Finding the Fourth Proportional to 790,198.28, 1,185,177.12 and 257,718.46
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Solution
The fourth proportional to 790,198.28, 1,185,177.12 and 257,718.46 is: 386,538.45
Step by Step Solution
- Step 1: Write the proportion equation
790,198.28 : 1,185,177.12 = 257,718.46 : x - Step 2: Convert to fraction form
790,198.28/1,185,177.12 = 257,718.46/x - Step 3: Cross multiply
790,198.28x = 1,185,177.12 × 257,718.46 - Step 4: Simplify right side
790,198.28x = 305,442,022,193.64 - Step 5: Solve for x
x = 305,442,022,193.64/790,198.28 - Step 6: Final answer
x = 386,538.45
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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.