Finding the Fourth Proportional to 1,626,236.62, 2,439,133.49 and 428,058.60
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Solution
The fourth proportional to 1,626,236.62, 2,439,133.49 and 428,058.60 is: 642,029.61
Step by Step Solution
- Step 1: Write the proportion equation
1,626,236.62 : 2,439,133.49 = 428,058.60 : x - Step 2: Convert to fraction form
1,626,236.62/2,439,133.49 = 428,058.60/x - Step 3: Cross multiply
1,626,236.62x = 2,439,133.49 × 428,058.60 - Step 4: Simplify right side
1,626,236.62x = 1,044,092,052,606.55 - Step 5: Solve for x
x = 1,044,092,052,606.55/1,626,236.62 - Step 6: Final answer
x = 642,029.61
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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.