Finding the Fourth Proportional to 505,687.05, 697,869.35 and 290,827.28
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Solution
The fourth proportional to 505,687.05, 697,869.35 and 290,827.28 is: 401,353.84
Step by Step Solution
- Step 1: Write the proportion equation
505,687.05 : 697,869.35 = 290,827.28 : x - Step 2: Convert to fraction form
505,687.05/697,869.35 = 290,827.28/x - Step 3: Cross multiply
505,687.05x = 697,869.35 × 290,827.28 - Step 4: Simplify right side
505,687.05x = 202,959,439,912.39 - Step 5: Solve for x
x = 202,959,439,912.39/505,687.05 - Step 6: Final answer
x = 401,353.84
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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.