Finding the Fourth Proportional to 3,138,540.80, 4,706,644.80 and 1,244,890.40
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Solution
The fourth proportional to 3,138,540.80, 4,706,644.80 and 1,244,890.40 is: 1,866,872.95
Step by Step Solution
- Step 1: Write the proportion equation
3,138,540.80 : 4,706,644.80 = 1,244,890.40 : x - Step 2: Convert to fraction form
3,138,540.80/4,706,644.80 = 1,244,890.40/x - Step 3: Cross multiply
3,138,540.80x = 4,706,644.80 × 1,244,890.40 - Step 4: Simplify right side
3,138,540.80x = 5,859,256,927,729.92 - Step 5: Solve for x
x = 5,859,256,927,729.92/3,138,540.80 - Step 6: Final answer
x = 1,866,872.95
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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.