Finding the Fourth Proportional to 720,478.52, 1,080,134.50 and 300,069.08
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Solution
The fourth proportional to 720,478.52, 1,080,134.50 and 300,069.08 is: 449,860.69
Step by Step Solution
- Step 1: Write the proportion equation
720,478.52 : 1,080,134.50 = 300,069.08 : x - Step 2: Convert to fraction form
720,478.52/1,080,134.50 = 300,069.08/x - Step 3: Cross multiply
720,478.52x = 1,080,134.50 × 300,069.08 - Step 4: Simplify right side
720,478.52x = 324,114,965,691.26 - Step 5: Solve for x
x = 324,114,965,691.26/720,478.52 - Step 6: Final answer
x = 449,860.69
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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.