Finding the Fourth Proportional to 1,542,988.50, 2,129,346.12 and 889,601.60
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Solution
The fourth proportional to 1,542,988.50, 2,129,346.12 and 889,601.60 is: 1,227,662.88
Step by Step Solution
- Step 1: Write the proportion equation
1,542,988.50 : 2,129,346.12 = 889,601.60 : x - Step 2: Convert to fraction form
1,542,988.50/2,129,346.12 = 889,601.60/x - Step 3: Cross multiply
1,542,988.50x = 2,129,346.12 × 889,601.60 - Step 4: Simplify right side
1,542,988.50x = 1,894,269,704,659.06 - Step 5: Solve for x
x = 1,894,269,704,659.06/1,542,988.50 - Step 6: Final answer
x = 1,227,662.88
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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.