Finding the Fourth Proportional to 831,288.44, 1,246,545.12 and 431,822
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Solution
The fourth proportional to 831,288.44, 1,246,545.12 and 431,822 is: 647,531.69
Step by Step Solution
- Step 1: Write the proportion equation
831,288.44 : 1,246,545.12 = 431,822 : x - Step 2: Convert to fraction form
831,288.44/1,246,545.12 = 431,822/x - Step 3: Cross multiply
831,288.44x = 1,246,545.12 × 431,822 - Step 4: Simplify right side
831,288.44x = 538,285,606,808.64 - Step 5: Solve for x
x = 538,285,606,808.64/831,288.44 - Step 6: Final answer
x = 647,531.69
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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.