Finding the Fourth Proportional to 720,135.24, 1,080,880.83 and 365,403.84
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Solution
The fourth proportional to 720,135.24, 1,080,880.83 and 365,403.84 is: 548,449.77
Step by Step Solution
- Step 1: Write the proportion equation
720,135.24 : 1,080,880.83 = 365,403.84 : x - Step 2: Convert to fraction form
720,135.24/1,080,880.83 = 365,403.84/x - Step 3: Cross multiply
720,135.24x = 1,080,880.83 × 365,403.84 - Step 4: Simplify right side
720,135.24x = 394,958,005,864.39 - Step 5: Solve for x
x = 394,958,005,864.39/720,135.24 - Step 6: Final answer
x = 548,449.77
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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.