Finding the Fourth Proportional to 1,518,471.38, 2,278,275.70 and 788,539.70
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Solution
The fourth proportional to 1,518,471.38, 2,278,275.70 and 788,539.70 is: 1,183,104.84
Step by Step Solution
- Step 1: Write the proportion equation
1,518,471.38 : 2,278,275.70 = 788,539.70 : x - Step 2: Convert to fraction form
1,518,471.38/2,278,275.70 = 788,539.70/x - Step 3: Cross multiply
1,518,471.38x = 2,278,275.70 × 788,539.70 - Step 4: Simplify right side
1,518,471.38x = 1,796,510,836,995.29 - Step 5: Solve for x
x = 1,796,510,836,995.29/1,518,471.38 - Step 6: Final answer
x = 1,183,104.84
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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.