Finding the Fourth Proportional to 887,493.20, 1,332,114.60 and 438,720.80
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Solution
The fourth proportional to 887,493.20, 1,332,114.60 and 438,720.80 is: 658,513.65
Step by Step Solution
- Step 1: Write the proportion equation
887,493.20 : 1,332,114.60 = 438,720.80 : x - Step 2: Convert to fraction form
887,493.20/1,332,114.60 = 438,720.80/x - Step 3: Cross multiply
887,493.20x = 1,332,114.60 × 438,720.80 - Step 4: Simplify right side
887,493.20x = 584,426,383,003.68 - Step 5: Solve for x
x = 584,426,383,003.68/887,493.20 - Step 6: Final answer
x = 658,513.65
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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.