Finding the Fourth Proportional to 3,862,393.40, 5,794,281.30 and 1,618,758.20
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Solution
The fourth proportional to 3,862,393.40, 5,794,281.30 and 1,618,758.20 is: 2,428,426.99
Step by Step Solution
- Step 1: Write the proportion equation
3,862,393.40 : 5,794,281.30 = 1,618,758.20 : x - Step 2: Convert to fraction form
3,862,393.40/5,794,281.30 = 1,618,758.20/x - Step 3: Cross multiply
3,862,393.40x = 5,794,281.30 × 1,618,758.20 - Step 4: Simplify right side
3,862,393.40x = 9,379,540,367,481.66 - Step 5: Solve for x
x = 9,379,540,367,481.66/3,862,393.40 - Step 6: Final answer
x = 2,428,426.99
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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.