Finding the Fourth Proportional to 1,542,995.63, 2,129,355.97 and 889,608.72
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Solution
The fourth proportional to 1,542,995.63, 2,129,355.97 and 889,608.72 is: 1,227,672.72
Step by Step Solution
- Step 1: Write the proportion equation
1,542,995.63 : 2,129,355.97 = 889,608.72 : x - Step 2: Convert to fraction form
1,542,995.63/2,129,355.97 = 889,608.72/x - Step 3: Cross multiply
1,542,995.63x = 2,129,355.97 × 889,608.72 - Step 4: Simplify right side
1,542,995.63x = 1,894,293,636,672.04 - Step 5: Solve for x
x = 1,894,293,636,672.04/1,542,995.63 - Step 6: Final answer
x = 1,227,672.72
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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.