Finding the Fourth Proportional to 2,019,438.86, 2,798,615.40 and 1,981,116.99
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Solution
The fourth proportional to 2,019,438.86, 2,798,615.40 and 1,981,116.99 is: 2,745,507.50
Step by Step Solution
- Step 1: Write the proportion equation
2,019,438.86 : 2,798,615.40 = 1,981,116.99 : x - Step 2: Convert to fraction form
2,019,438.86/2,798,615.40 = 1,981,116.99/x - Step 3: Cross multiply
2,019,438.86x = 2,798,615.40 × 1,981,116.99 - Step 4: Simplify right side
2,019,438.86x = 5,544,384,517,415.65 - Step 5: Solve for x
x = 5,544,384,517,415.65/2,019,438.86 - Step 6: Final answer
x = 2,745,507.50
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.