Finding the Fourth Proportional to 1,981,572.93, 2,734,570.53 and 1,122,299.28
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Solution
The fourth proportional to 1,981,572.93, 2,734,570.53 and 1,122,299.28 is: 1,548,772.94
Step by Step Solution
- Step 1: Write the proportion equation
1,981,572.93 : 2,734,570.53 = 1,122,299.28 : x - Step 2: Convert to fraction form
1,981,572.93/2,734,570.53 = 1,122,299.28/x - Step 3: Cross multiply
1,981,572.93x = 2,734,570.53 × 1,122,299.28 - Step 4: Simplify right side
1,981,572.93x = 3,069,006,536,928.22 - Step 5: Solve for x
x = 3,069,006,536,928.22/1,981,572.93 - Step 6: Final answer
x = 1,548,772.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.