Finding the Fourth Proportional to 667,161.80, 919,768.08 and 422,024.60
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Solution
The fourth proportional to 667,161.80, 919,768.08 and 422,024.60 is: 581,815.02
Step by Step Solution
- Step 1: Write the proportion equation
667,161.80 : 919,768.08 = 422,024.60 : x - Step 2: Convert to fraction form
667,161.80/919,768.08 = 422,024.60/x - Step 3: Cross multiply
667,161.80x = 919,768.08 × 422,024.60 - Step 4: Simplify right side
667,161.80x = 388,164,756,054.77 - Step 5: Solve for x
x = 388,164,756,054.77/667,161.80 - Step 6: Final answer
x = 581,815.02
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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.