Finding the Fourth Proportional to 691,198.08, 953,737.92 and 385,207.68
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Solution
The fourth proportional to 691,198.08, 953,737.92 and 385,207.68 is: 531,522.27
Step by Step Solution
- Step 1: Write the proportion equation
691,198.08 : 953,737.92 = 385,207.68 : x - Step 2: Convert to fraction form
691,198.08/953,737.92 = 385,207.68/x - Step 3: Cross multiply
691,198.08x = 953,737.92 × 385,207.68 - Step 4: Simplify right side
691,198.08x = 367,387,171,491.23 - Step 5: Solve for x
x = 367,387,171,491.23/691,198.08 - Step 6: Final answer
x = 531,522.27
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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.