Finding the Fourth Proportional to 739,874.36, 1,021,027.20 and 513,651.08
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Solution
The fourth proportional to 739,874.36, 1,021,027.20 and 513,651.08 is: 708,838.90
Step by Step Solution
- Step 1: Write the proportion equation
739,874.36 : 1,021,027.20 = 513,651.08 : x - Step 2: Convert to fraction form
739,874.36/1,021,027.20 = 513,651.08/x - Step 3: Cross multiply
739,874.36x = 1,021,027.20 × 513,651.08 - Step 4: Simplify right side
739,874.36x = 524,451,723,989.38 - Step 5: Solve for x
x = 524,451,723,989.38/739,874.36 - Step 6: Final answer
x = 708,838.90
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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.