Finding the Fourth Proportional to 890,835.11, 1,229,063.24 and 503,612.99
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Solution
The fourth proportional to 890,835.11, 1,229,063.24 and 503,612.99 is: 694,822.43
Step by Step Solution
- Step 1: Write the proportion equation
890,835.11 : 1,229,063.24 = 503,612.99 : x - Step 2: Convert to fraction form
890,835.11/1,229,063.24 = 503,612.99/x - Step 3: Cross multiply
890,835.11x = 1,229,063.24 × 503,612.99 - Step 4: Simplify right side
890,835.11x = 618,972,208,309.20 - Step 5: Solve for x
x = 618,972,208,309.20/890,835.11 - Step 6: Final answer
x = 694,822.43
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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.