Finding the Fourth Proportional to 1,431,107.64, 2,146,672.44 and 420,247.08
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Solution
The fourth proportional to 1,431,107.64, 2,146,672.44 and 420,247.08 is: 630,373.84
Step by Step Solution
- Step 1: Write the proportion equation
1,431,107.64 : 2,146,672.44 = 420,247.08 : x - Step 2: Convert to fraction form
1,431,107.64/2,146,672.44 = 420,247.08/x - Step 3: Cross multiply
1,431,107.64x = 2,146,672.44 × 420,247.08 - Step 4: Simplify right side
1,431,107.64x = 902,132,824,626.48 - Step 5: Solve for x
x = 902,132,824,626.48/1,431,107.64 - Step 6: Final answer
x = 630,373.84
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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.