Finding the Fourth Proportional to 756,679.68, 1,134,230.40 and 283,158.72
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Solution
The fourth proportional to 756,679.68, 1,134,230.40 and 283,158.72 is: 424,442.78
Step by Step Solution
- Step 1: Write the proportion equation
756,679.68 : 1,134,230.40 = 283,158.72 : x - Step 2: Convert to fraction form
756,679.68/1,134,230.40 = 283,158.72/x - Step 3: Cross multiply
756,679.68x = 1,134,230.40 × 283,158.72 - Step 4: Simplify right side
756,679.68x = 321,167,228,249.09 - Step 5: Solve for x
x = 321,167,228,249.09/756,679.68 - Step 6: Final answer
x = 424,442.78
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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.