Finding the Fourth Proportional to 555,411.09, 765,893.97 and 475,104.45
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Solution
The fourth proportional to 555,411.09, 765,893.97 and 475,104.45 is: 655,153.70
Step by Step Solution
- Step 1: Write the proportion equation
555,411.09 : 765,893.97 = 475,104.45 : x - Step 2: Convert to fraction form
555,411.09/765,893.97 = 475,104.45/x - Step 3: Cross multiply
555,411.09x = 765,893.97 × 475,104.45 - Step 4: Simplify right side
555,411.09x = 363,879,633,375.17 - Step 5: Solve for x
x = 363,879,633,375.17/555,411.09 - Step 6: Final answer
x = 655,153.70
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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.