Finding the Fourth Proportional to 863,763.12, 1,191,994.92 and 481,780.08
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Solution
The fourth proportional to 863,763.12, 1,191,994.92 and 481,780.08 is: 664,857.52
Step by Step Solution
- Step 1: Write the proportion equation
863,763.12 : 1,191,994.92 = 481,780.08 : x - Step 2: Convert to fraction form
863,763.12/1,191,994.92 = 481,780.08/x - Step 3: Cross multiply
863,763.12x = 1,191,994.92 × 481,780.08 - Step 4: Simplify right side
863,763.12x = 574,279,407,917.19 - Step 5: Solve for x
x = 574,279,407,917.19/863,763.12 - Step 6: Final answer
x = 664,857.52
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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.