Finding the Fourth Proportional to 972,975.17, 1,459,467.97 and 638,136.19
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Solution
The fourth proportional to 972,975.17, 1,459,467.97 and 638,136.19 is: 957,207.69
Step by Step Solution
- Step 1: Write the proportion equation
972,975.17 : 1,459,467.97 = 638,136.19 : x - Step 2: Convert to fraction form
972,975.17/1,459,467.97 = 638,136.19/x - Step 3: Cross multiply
972,975.17x = 1,459,467.97 × 638,136.19 - Step 4: Simplify right side
972,975.17x = 931,339,320,910.15 - Step 5: Solve for x
x = 931,339,320,910.15/972,975.17 - Step 6: Final answer
x = 957,207.69
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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.