Finding the Fourth Proportional to 2,158,129.20, 3,237,193.80 and 737,713.20
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Solution
The fourth proportional to 2,158,129.20, 3,237,193.80 and 737,713.20 is: 1,106,569.80
Step by Step Solution
- Step 1: Write the proportion equation
2,158,129.20 : 3,237,193.80 = 737,713.20 : x - Step 2: Convert to fraction form
2,158,129.20/3,237,193.80 = 737,713.20/x - Step 3: Cross multiply
2,158,129.20x = 3,237,193.80 × 737,713.20 - Step 4: Simplify right side
2,158,129.20x = 2,388,120,597,218.16 - Step 5: Solve for x
x = 2,388,120,597,218.16/2,158,129.20 - Step 6: Final answer
x = 1,106,569.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.