Finding the Fourth Proportional to 2,112,329.60, 3,171,604.80 and 1,639,548.80
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Solution
The fourth proportional to 2,112,329.60, 3,171,604.80 and 1,639,548.80 is: 2,461,737.43
Step by Step Solution
- Step 1: Write the proportion equation
2,112,329.60 : 3,171,604.80 = 1,639,548.80 : x - Step 2: Convert to fraction form
2,112,329.60/3,171,604.80 = 1,639,548.80/x - Step 3: Cross multiply
2,112,329.60x = 3,171,604.80 × 1,639,548.80 - Step 4: Simplify right side
2,112,329.60x = 5,200,000,843,914.24 - Step 5: Solve for x
x = 5,200,000,843,914.24/2,112,329.60 - Step 6: Final answer
x = 2,461,737.43
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1.5x scale
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.