Finding the Fourth Proportional to 989,172.42, 1,364,555.61 and 625,984.26
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Solution
The fourth proportional to 989,172.42, 1,364,555.61 and 625,984.26 is: 863,540.39
Step by Step Solution
- Step 1: Write the proportion equation
989,172.42 : 1,364,555.61 = 625,984.26 : x - Step 2: Convert to fraction form
989,172.42/1,364,555.61 = 625,984.26/x - Step 3: Cross multiply
989,172.42x = 1,364,555.61 × 625,984.26 - Step 4: Simplify right side
989,172.42x = 854,190,333,754.70 - Step 5: Solve for x
x = 854,190,333,754.70/989,172.42 - Step 6: Final answer
x = 863,540.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.