Finding the Fourth Proportional to 819,999.18, 1,131,626.97 and 475,809.12
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Solution
The fourth proportional to 819,999.18, 1,131,626.97 and 475,809.12 is: 656,632.89
Step by Step Solution
- Step 1: Write the proportion equation
819,999.18 : 1,131,626.97 = 475,809.12 : x - Step 2: Convert to fraction form
819,999.18/1,131,626.97 = 475,809.12/x - Step 3: Cross multiply
819,999.18x = 1,131,626.97 × 475,809.12 - Step 4: Simplify right side
819,999.18x = 538,438,432,763.97 - Step 5: Solve for x
x = 538,438,432,763.97/819,999.18 - Step 6: Final answer
x = 656,632.89
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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.