Finding the Fourth Proportional to 802,642.43, 1,107,490.60 and 475,895.09
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Solution
The fourth proportional to 802,642.43, 1,107,490.60 and 475,895.09 is: 656,642.76
Step by Step Solution
- Step 1: Write the proportion equation
802,642.43 : 1,107,490.60 = 475,895.09 : x - Step 2: Convert to fraction form
802,642.43/1,107,490.60 = 475,895.09/x - Step 3: Cross multiply
802,642.43x = 1,107,490.60 × 475,895.09 - Step 4: Simplify right side
802,642.43x = 527,049,338,761.15 - Step 5: Solve for x
x = 527,049,338,761.15/802,642.43 - Step 6: Final answer
x = 656,642.76
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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.