Finding the Fourth Proportional to 2,485,467.90, 3,728,163.78 and 1,118,275.92
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Solution
The fourth proportional to 2,485,467.90, 3,728,163.78 and 1,118,275.92 is: 1,677,396.75
Step by Step Solution
- Step 1: Write the proportion equation
2,485,467.90 : 3,728,163.78 = 1,118,275.92 : x - Step 2: Convert to fraction form
2,485,467.90/3,728,163.78 = 1,118,275.92/x - Step 3: Cross multiply
2,485,467.90x = 3,728,163.78 × 1,118,275.92 - Step 4: Simplify right side
2,485,467.90x = 4,169,115,780,990.18 - Step 5: Solve for x
x = 4,169,115,780,990.18/2,485,467.90 - Step 6: Final answer
x = 1,677,396.75
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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.