Finding the Fourth Proportional to 768,153.96, 1,060,046.74 and 423,989.82
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Solution
The fourth proportional to 768,153.96, 1,060,046.74 and 423,989.82 is: 585,102.79
Step by Step Solution
- Step 1: Write the proportion equation
768,153.96 : 1,060,046.74 = 423,989.82 : x - Step 2: Convert to fraction form
768,153.96/1,060,046.74 = 423,989.82/x - Step 3: Cross multiply
768,153.96x = 1,060,046.74 × 423,989.82 - Step 4: Simplify right side
768,153.96x = 449,449,026,484.19 - Step 5: Solve for x
x = 449,449,026,484.19/768,153.96 - Step 6: Final answer
x = 585,102.79
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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.