Finding the Fourth Proportional to 406,820.68, 561,872.09 and 277,537.12
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Solution
The fourth proportional to 406,820.68, 561,872.09 and 277,537.12 is: 383,314.74
Step by Step Solution
- Step 1: Write the proportion equation
406,820.68 : 561,872.09 = 277,537.12 : x - Step 2: Convert to fraction form
406,820.68/561,872.09 = 277,537.12/x - Step 3: Cross multiply
406,820.68x = 561,872.09 × 277,537.12 - Step 4: Simplify right side
406,820.68x = 155,940,360,956.14 - Step 5: Solve for x
x = 155,940,360,956.14/406,820.68 - Step 6: Final answer
x = 383,314.74
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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.