Finding the Fourth Proportional to 2,328,423.68, 3,493,216.79 and 812,128.40
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Solution
The fourth proportional to 2,328,423.68, 3,493,216.79 and 812,128.40 is: 1,218,395.33
Step by Step Solution
- Step 1: Write the proportion equation
2,328,423.68 : 3,493,216.79 = 812,128.40 : x - Step 2: Convert to fraction form
2,328,423.68/3,493,216.79 = 812,128.40/x - Step 3: Cross multiply
2,328,423.68x = 3,493,216.79 × 812,128.40 - Step 4: Simplify right side
2,328,423.68x = 2,836,940,540,989.11 - Step 5: Solve for x
x = 2,836,940,540,989.11/2,328,423.68 - Step 6: Final answer
x = 1,218,395.33
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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.