Finding the Fourth Proportional to 1,146,475.12, 1,719,957.18 and 388,290.06
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Solution
The fourth proportional to 1,146,475.12, 1,719,957.18 and 388,290.06 is: 582,517.90
Step by Step Solution
- Step 1: Write the proportion equation
1,146,475.12 : 1,719,957.18 = 388,290.06 : x - Step 2: Convert to fraction form
1,146,475.12/1,719,957.18 = 388,290.06/x - Step 3: Cross multiply
1,146,475.12x = 1,719,957.18 × 388,290.06 - Step 4: Simplify right side
1,146,475.12x = 667,842,276,619.63 - Step 5: Solve for x
x = 667,842,276,619.63/1,146,475.12 - Step 6: Final answer
x = 582,517.90
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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.