Finding the Fourth Proportional to 627,819.78, 866,516.97 and 373,121.70
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Solution
The fourth proportional to 627,819.78, 866,516.97 and 373,121.70 is: 514,982.64
Step by Step Solution
- Step 1: Write the proportion equation
627,819.78 : 866,516.97 = 373,121.70 : x - Step 2: Convert to fraction form
627,819.78/866,516.97 = 373,121.70/x - Step 3: Cross multiply
627,819.78x = 866,516.97 × 373,121.70 - Step 4: Simplify right side
627,819.78x = 323,316,284,925.25 - Step 5: Solve for x
x = 323,316,284,925.25/627,819.78 - Step 6: Final answer
x = 514,982.64
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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.