Finding the Fourth Proportional to 505,998.45, 697,825.83 and 419,820.99
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Solution
The fourth proportional to 505,998.45, 697,825.83 and 419,820.99 is: 578,977.92
Step by Step Solution
- Step 1: Write the proportion equation
505,998.45 : 697,825.83 = 419,820.99 : x - Step 2: Convert to fraction form
505,998.45/697,825.83 = 419,820.99/x - Step 3: Cross multiply
505,998.45x = 697,825.83 × 419,820.99 - Step 4: Simplify right side
505,998.45x = 292,961,930,798.17 - Step 5: Solve for x
x = 292,961,930,798.17/505,998.45 - Step 6: Final answer
x = 578,977.92
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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.