Finding the Fourth Proportional to 463,676.44, 639,245.10 and 396,415.84
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Solution
The fourth proportional to 463,676.44, 639,245.10 and 396,415.84 is: 546,516.63
Step by Step Solution
- Step 1: Write the proportion equation
463,676.44 : 639,245.10 = 396,415.84 : x - Step 2: Convert to fraction form
463,676.44/639,245.10 = 396,415.84/x - Step 3: Cross multiply
463,676.44x = 639,245.10 × 396,415.84 - Step 4: Simplify right side
463,676.44x = 253,406,883,282.38 - Step 5: Solve for x
x = 253,406,883,282.38/463,676.44 - Step 6: Final answer
x = 546,516.63
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1.5x scale
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.