Finding the Fourth Proportional to 980,728.22, 1,471,090.16 and 261,070.08
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Solution
The fourth proportional to 980,728.22, 1,471,090.16 and 261,070.08 is: 391,604.54
Step by Step Solution
- Step 1: Write the proportion equation
980,728.22 : 1,471,090.16 = 261,070.08 : x - Step 2: Convert to fraction form
980,728.22/1,471,090.16 = 261,070.08/x - Step 3: Cross multiply
980,728.22x = 1,471,090.16 × 261,070.08 - Step 4: Simplify right side
980,728.22x = 384,057,624,453.06 - Step 5: Solve for x
x = 384,057,624,453.06/980,728.22 - Step 6: Final answer
x = 391,604.54
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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.