Finding the Fourth Proportional to 868,138.40, 1,302,207.60 and 448,234.40
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Solution
The fourth proportional to 868,138.40, 1,302,207.60 and 448,234.40 is: 672,351.60
Step by Step Solution
- Step 1: Write the proportion equation
868,138.40 : 1,302,207.60 = 448,234.40 : x - Step 2: Convert to fraction form
868,138.40/1,302,207.60 = 448,234.40/x - Step 3: Cross multiply
868,138.40x = 1,302,207.60 × 448,234.40 - Step 4: Simplify right side
868,138.40x = 583,694,242,261.44 - Step 5: Solve for x
x = 583,694,242,261.44/868,138.40 - Step 6: Final answer
x = 672,351.60
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1.5x scale
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.