Finding the Fourth Proportional to 557,908.68, 769,998.11 and 340,243.62
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Solution
The fourth proportional to 557,908.68, 769,998.11 and 340,243.62 is: 469,587.50
Step by Step Solution
- Step 1: Write the proportion equation
557,908.68 : 769,998.11 = 340,243.62 : x - Step 2: Convert to fraction form
557,908.68/769,998.11 = 340,243.62/x - Step 3: Cross multiply
557,908.68x = 769,998.11 × 340,243.62 - Step 4: Simplify right side
557,908.68x = 261,986,944,339.56 - Step 5: Solve for x
x = 261,986,944,339.56/557,908.68 - Step 6: Final answer
x = 469,587.50
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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.