Finding the Fourth Proportional to 409,149.08, 613,789.74 and 120,989.96
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Solution
The fourth proportional to 409,149.08, 613,789.74 and 120,989.96 is: 181,504.49
Step by Step Solution
- Step 1: Write the proportion equation
409,149.08 : 613,789.74 = 120,989.96 : x - Step 2: Convert to fraction form
409,149.08/613,789.74 = 120,989.96/x - Step 3: Cross multiply
409,149.08x = 613,789.74 × 120,989.96 - Step 4: Simplify right side
409,149.08x = 74,262,396,091.01 - Step 5: Solve for x
x = 74,262,396,091.01/409,149.08 - Step 6: Final answer
x = 181,504.49
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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.