Finding the Fourth Proportional to 4,119,030.80, 6,179,129.40 and 1,278,846.80
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Solution
The fourth proportional to 4,119,030.80, 6,179,129.40 and 1,278,846.80 is: 1,918,451.27
Step by Step Solution
- Step 1: Write the proportion equation
4,119,030.80 : 6,179,129.40 = 1,278,846.80 : x - Step 2: Convert to fraction form
4,119,030.80/6,179,129.40 = 1,278,846.80/x - Step 3: Cross multiply
4,119,030.80x = 6,179,129.40 × 1,278,846.80 - Step 4: Simplify right side
4,119,030.80x = 7,902,159,859,975.92 - Step 5: Solve for x
x = 7,902,159,859,975.92/4,119,030.80 - Step 6: Final answer
x = 1,918,451.27
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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.