Finding the Fourth Proportional to 1,259,172.18, 1,889,314.74 and 659,990.07
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Solution
The fourth proportional to 1,259,172.18, 1,889,314.74 and 659,990.07 is: 990,276.78
Step by Step Solution
- Step 1: Write the proportion equation
1,259,172.18 : 1,889,314.74 = 659,990.07 : x - Step 2: Convert to fraction form
1,259,172.18/1,889,314.74 = 659,990.07/x - Step 3: Cross multiply
1,259,172.18x = 1,889,314.74 × 659,990.07 - Step 4: Simplify right side
1,259,172.18x = 1,246,928,967,504.63 - Step 5: Solve for x
x = 1,246,928,967,504.63/1,259,172.18 - Step 6: Final answer
x = 990,276.78
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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.