Finding the Fourth Proportional to 505,819.88, 698,023.12 and 279,486.44
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Solution
The fourth proportional to 505,819.88, 698,023.12 and 279,486.44 is: 385,686.69
Step by Step Solution
- Step 1: Write the proportion equation
505,819.88 : 698,023.12 = 279,486.44 : x - Step 2: Convert to fraction form
505,819.88/698,023.12 = 279,486.44/x - Step 3: Cross multiply
505,819.88x = 698,023.12 × 279,486.44 - Step 4: Simplify right side
505,819.88x = 195,087,996,846.49 - Step 5: Solve for x
x = 195,087,996,846.49/505,819.88 - Step 6: Final answer
x = 385,686.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.