Finding the Fourth Proportional to 1,639,421.08, 2,262,396.63 and 914,269.57
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Solution
The fourth proportional to 1,639,421.08, 2,262,396.63 and 914,269.57 is: 1,261,689.52
Step by Step Solution
- Step 1: Write the proportion equation
1,639,421.08 : 2,262,396.63 = 914,269.57 : x - Step 2: Convert to fraction form
1,639,421.08/2,262,396.63 = 914,269.57/x - Step 3: Cross multiply
1,639,421.08x = 2,262,396.63 × 914,269.57 - Step 4: Simplify right side
1,639,421.08x = 2,068,440,394,079.55 - Step 5: Solve for x
x = 2,068,440,394,079.55/1,639,421.08 - Step 6: Final answer
x = 1,261,689.52
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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.