Finding the Fourth Proportional to 1,092,634.80, 1,638,174.60 and 418,455.60
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Solution
The fourth proportional to 1,092,634.80, 1,638,174.60 and 418,455.60 is: 627,385.60
Step by Step Solution
- Step 1: Write the proportion equation
1,092,634.80 : 1,638,174.60 = 418,455.60 : x - Step 2: Convert to fraction form
1,092,634.80/1,638,174.60 = 418,455.60/x - Step 3: Cross multiply
1,092,634.80x = 1,638,174.60 × 418,455.60 - Step 4: Simplify right side
1,092,634.80x = 685,503,335,147.76 - Step 5: Solve for x
x = 685,503,335,147.76/1,092,634.80 - Step 6: Final answer
x = 627,385.60
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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.