Finding the Fourth Proportional to 747,933.72, 1,121,233.68 and 274,509.24
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Solution
The fourth proportional to 747,933.72, 1,121,233.68 and 274,509.24 is: 411,519.09
Step by Step Solution
- Step 1: Write the proportion equation
747,933.72 : 1,121,233.68 = 274,509.24 : x - Step 2: Convert to fraction form
747,933.72/1,121,233.68 = 274,509.24/x - Step 3: Cross multiply
747,933.72x = 1,121,233.68 × 274,509.24 - Step 4: Simplify right side
747,933.72x = 307,789,005,359.20 - Step 5: Solve for x
x = 307,789,005,359.20/747,933.72 - Step 6: Final answer
x = 411,519.09
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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.