Finding the Fourth Proportional to 2,163,857.60, 2,985,863.30 and 1,246,385.14
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Solution
The fourth proportional to 2,163,857.60, 2,985,863.30 and 1,246,385.14 is: 1,719,861.62
Step by Step Solution
- Step 1: Write the proportion equation
2,163,857.60 : 2,985,863.30 = 1,246,385.14 : x - Step 2: Convert to fraction form
2,163,857.60/2,985,863.30 = 1,246,385.14/x - Step 3: Cross multiply
2,163,857.60x = 2,985,863.30 × 1,246,385.14 - Step 4: Simplify right side
2,163,857.60x = 3,721,535,647,191.36 - Step 5: Solve for x
x = 3,721,535,647,191.36/2,163,857.60 - Step 6: Final answer
x = 1,719,861.62
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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.