Finding the Fourth Proportional to 748,076.99, 1,122,279.57 and 242,689.09
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Solution
The fourth proportional to 748,076.99, 1,122,279.57 and 242,689.09 is: 364,086.87
Step by Step Solution
- Step 1: Write the proportion equation
748,076.99 : 1,122,279.57 = 242,689.09 : x - Step 2: Convert to fraction form
748,076.99/1,122,279.57 = 242,689.09/x - Step 3: Cross multiply
748,076.99x = 1,122,279.57 × 242,689.09 - Step 4: Simplify right side
748,076.99x = 272,365,007,568.89 - Step 5: Solve for x
x = 272,365,007,568.89/748,076.99 - Step 6: Final answer
x = 364,086.87
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.