Finding the Fourth Proportional to 3,827,857.20, 5,750,339.40 and 3,198,001.20
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Solution
The fourth proportional to 3,827,857.20, 5,750,339.40 and 3,198,001.20 is: 4,804,147.95
Step by Step Solution
- Step 1: Write the proportion equation
3,827,857.20 : 5,750,339.40 = 3,198,001.20 : x - Step 2: Convert to fraction form
3,827,857.20/5,750,339.40 = 3,198,001.20/x - Step 3: Cross multiply
3,827,857.20x = 5,750,339.40 × 3,198,001.20 - Step 4: Simplify right side
3,827,857.20x = 18,389,592,301,607.28 - Step 5: Solve for x
x = 18,389,592,301,607.28/3,827,857.20 - Step 6: Final answer
x = 4,804,147.95
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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.