Finding the Fourth Proportional to 839,403.68, 1,259,351.64 and 270,773.36
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Solution
The fourth proportional to 839,403.68, 1,259,351.64 and 270,773.36 is: 406,239.43
Step by Step Solution
- Step 1: Write the proportion equation
839,403.68 : 1,259,351.64 = 270,773.36 : x - Step 2: Convert to fraction form
839,403.68/1,259,351.64 = 270,773.36/x - Step 3: Cross multiply
839,403.68x = 1,259,351.64 × 270,773.36 - Step 4: Simplify right side
839,403.68x = 340,998,874,984.31 - Step 5: Solve for x
x = 340,998,874,984.31/839,403.68 - Step 6: Final answer
x = 406,239.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.