Finding the Fourth Proportional to 1,981,644.32, 2,734,837.81 and 1,122,357.44
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Solution
The fourth proportional to 1,981,644.32, 2,734,837.81 and 1,122,357.44 is: 1,548,948.79
Step by Step Solution
- Step 1: Write the proportion equation
1,981,644.32 : 2,734,837.81 = 1,122,357.44 : x - Step 2: Convert to fraction form
1,981,644.32/2,734,837.81 = 1,122,357.44/x - Step 3: Cross multiply
1,981,644.32x = 2,734,837.81 × 1,122,357.44 - Step 4: Simplify right side
1,981,644.32x = 3,069,465,563,246.81 - Step 5: Solve for x
x = 3,069,465,563,246.81/1,981,644.32 - Step 6: Final answer
x = 1,548,948.79
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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.