Finding the Fourth Proportional to 447,874.21, 672,026.42 and 279,351.28
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Solution
The fourth proportional to 447,874.21, 672,026.42 and 279,351.28 is: 419,161.09
Step by Step Solution
- Step 1: Write the proportion equation
447,874.21 : 672,026.42 = 279,351.28 : x - Step 2: Convert to fraction form
447,874.21/672,026.42 = 279,351.28/x - Step 3: Cross multiply
447,874.21x = 672,026.42 × 279,351.28 - Step 4: Simplify right side
447,874.21x = 187,731,442,159.23 - Step 5: Solve for x
x = 187,731,442,159.23/447,874.21 - Step 6: Final answer
x = 419,161.09
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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.