Finding the Fourth Proportional to 554,938.62, 765,817.92 and 313,231.38
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Solution
The fourth proportional to 554,938.62, 765,817.92 and 313,231.38 is: 432,260.79
Step by Step Solution
- Step 1: Write the proportion equation
554,938.62 : 765,817.92 = 313,231.38 : x - Step 2: Convert to fraction form
554,938.62/765,817.92 = 313,231.38/x - Step 3: Cross multiply
554,938.62x = 765,817.92 × 313,231.38 - Step 4: Simplify right side
554,938.62x = 239,878,203,910.33 - Step 5: Solve for x
x = 239,878,203,910.33/554,938.62 - Step 6: Final answer
x = 432,260.79
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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.