Finding the Fourth Proportional to 711,128.24, 981,604.08 and 409,442.48
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Solution
The fourth proportional to 711,128.24, 981,604.08 and 409,442.48 is: 565,172.90
Step by Step Solution
- Step 1: Write the proportion equation
711,128.24 : 981,604.08 = 409,442.48 : x - Step 2: Convert to fraction form
711,128.24/981,604.08 = 409,442.48/x - Step 3: Cross multiply
711,128.24x = 981,604.08 × 409,442.48 - Step 4: Simplify right side
711,128.24x = 401,910,408,893.32 - Step 5: Solve for x
x = 401,910,408,893.32/711,128.24 - Step 6: Final answer
x = 565,172.90
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1.5x scale
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.