Finding the Fourth Proportional to 2,992,891.30, 4,489,336.95 and 749,025.70
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Solution
The fourth proportional to 2,992,891.30, 4,489,336.95 and 749,025.70 is: 1,123,538.55
Step by Step Solution
- Step 1: Write the proportion equation
2,992,891.30 : 4,489,336.95 = 749,025.70 : x - Step 2: Convert to fraction form
2,992,891.30/4,489,336.95 = 749,025.70/x - Step 3: Cross multiply
2,992,891.30x = 4,489,336.95 × 749,025.70 - Step 4: Simplify right side
2,992,891.30x = 3,362,628,751,509.62 - Step 5: Solve for x
x = 3,362,628,751,509.62/2,992,891.30 - Step 6: Final answer
x = 1,123,538.55
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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.