Finding the Fourth Proportional to 505,569.56, 697,690.14 and 279,218.84
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Solution
The fourth proportional to 505,569.56, 697,690.14 and 279,218.84 is: 385,324.29
Step by Step Solution
- Step 1: Write the proportion equation
505,569.56 : 697,690.14 = 279,218.84 : x - Step 2: Convert to fraction form
505,569.56/697,690.14 = 279,218.84/x - Step 3: Cross multiply
505,569.56x = 697,690.14 × 279,218.84 - Step 4: Simplify right side
505,569.56x = 194,808,231,570.24 - Step 5: Solve for x
x = 194,808,231,570.24/505,569.56 - Step 6: Final answer
x = 385,324.29
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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.