Finding the Fourth Proportional to 1,241,068.68, 1,861,143.21 and 442,138.14
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Solution
The fourth proportional to 1,241,068.68, 1,861,143.21 and 442,138.14 is: 663,043.40
Step by Step Solution
- Step 1: Write the proportion equation
1,241,068.68 : 1,861,143.21 = 442,138.14 : x - Step 2: Convert to fraction form
1,241,068.68/1,861,143.21 = 442,138.14/x - Step 3: Cross multiply
1,241,068.68x = 1,861,143.21 × 442,138.14 - Step 4: Simplify right side
1,241,068.68x = 822,882,397,143.03 - Step 5: Solve for x
x = 822,882,397,143.03/1,241,068.68 - Step 6: Final answer
x = 663,043.40
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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.