Finding the Fourth Proportional to 505,691.87, 697,874.96 and 290,831.81
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Solution
The fourth proportional to 505,691.87, 697,874.96 and 290,831.81 is: 401,359.50
Step by Step Solution
- Step 1: Write the proportion equation
505,691.87 : 697,874.96 = 290,831.81 : x - Step 2: Convert to fraction form
505,691.87/697,874.96 = 290,831.81/x - Step 3: Cross multiply
505,691.87x = 697,874.96 × 290,831.81 - Step 4: Simplify right side
505,691.87x = 202,964,237,770.48 - Step 5: Solve for x
x = 202,964,237,770.48/505,691.87 - Step 6: Final answer
x = 401,359.50
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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.