Finding the Fourth Proportional to 902,190.70, 1,244,964.84 and 494,291.98
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Solution
The fourth proportional to 902,190.70, 1,244,964.84 and 494,291.98 is: 682,090.98
Step by Step Solution
- Step 1: Write the proportion equation
902,190.70 : 1,244,964.84 = 494,291.98 : x - Step 2: Convert to fraction form
902,190.70/1,244,964.84 = 494,291.98/x - Step 3: Cross multiply
902,190.70x = 1,244,964.84 × 494,291.98 - Step 4: Simplify right side
902,190.70x = 615,376,135,793.98 - Step 5: Solve for x
x = 615,376,135,793.98/902,190.70 - Step 6: Final answer
x = 682,090.98
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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.