Finding the Fourth Proportional to 1,865,782.05, 2,798,688.64 and 518,049.75
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Solution
The fourth proportional to 1,865,782.05, 2,798,688.64 and 518,049.75 is: 777,078.95
Step by Step Solution
- Step 1: Write the proportion equation
1,865,782.05 : 2,798,688.64 = 518,049.75 : x - Step 2: Convert to fraction form
1,865,782.05/2,798,688.64 = 518,049.75/x - Step 3: Cross multiply
1,865,782.05x = 2,798,688.64 × 518,049.75 - Step 4: Simplify right side
1,865,782.05x = 1,449,859,951,122.81 - Step 5: Solve for x
x = 1,449,859,951,122.81/1,865,782.05 - Step 6: Final answer
x = 777,078.95
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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.