Finding the Fourth Proportional to 4,119,025.80, 6,179,121.90 and 1,278,841.80
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Solution
The fourth proportional to 4,119,025.80, 6,179,121.90 and 1,278,841.80 is: 1,918,443.77
Step by Step Solution
- Step 1: Write the proportion equation
4,119,025.80 : 6,179,121.90 = 1,278,841.80 : x - Step 2: Convert to fraction form
4,119,025.80/6,179,121.90 = 1,278,841.80/x - Step 3: Cross multiply
4,119,025.80x = 6,179,121.90 × 1,278,841.80 - Step 4: Simplify right side
4,119,025.80x = 7,902,119,373,015.42 - Step 5: Solve for x
x = 7,902,119,373,015.42/4,119,025.80 - Step 6: Final answer
x = 1,918,443.77
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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.