Finding the Fourth Proportional to 5,342,619.92, 8,013,817.49 and 1,299,128.67
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Solution
The fourth proportional to 5,342,619.92, 8,013,817.49 and 1,299,128.67 is: 1,948,665.68
Step by Step Solution
- Step 1: Write the proportion equation
5,342,619.92 : 8,013,817.49 = 1,299,128.67 : x - Step 2: Convert to fraction form
5,342,619.92/8,013,817.49 = 1,299,128.67/x - Step 3: Cross multiply
5,342,619.92x = 8,013,817.49 × 1,299,128.67 - Step 4: Simplify right side
5,342,619.92x = 10,410,980,050,910.79 - Step 5: Solve for x
x = 10,410,980,050,910.79/5,342,619.92 - Step 6: Final answer
x = 1,948,665.68
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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.