Finding the Fourth Proportional to 512,655.27, 768,546.69 and 313,115.64
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Solution
The fourth proportional to 512,655.27, 768,546.69 and 313,115.64 is: 469,407.03
Step by Step Solution
- Step 1: Write the proportion equation
512,655.27 : 768,546.69 = 313,115.64 : x - Step 2: Convert to fraction form
512,655.27/768,546.69 = 313,115.64/x - Step 3: Cross multiply
512,655.27x = 768,546.69 × 313,115.64 - Step 4: Simplify right side
512,655.27x = 240,643,988,709.23 - Step 5: Solve for x
x = 240,643,988,709.23/512,655.27 - Step 6: Final answer
x = 469,407.03
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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.