Finding the Fourth Proportional to 1,107,549.24, 1,529,236.98 and 678,415.56
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Solution
The fourth proportional to 1,107,549.24, 1,529,236.98 and 678,415.56 is: 936,715.16
Step by Step Solution
- Step 1: Write the proportion equation
1,107,549.24 : 1,529,236.98 = 678,415.56 : x - Step 2: Convert to fraction form
1,107,549.24/1,529,236.98 = 678,415.56/x - Step 3: Cross multiply
1,107,549.24x = 1,529,236.98 × 678,415.56 - Step 4: Simplify right side
1,107,549.24x = 1,037,458,162,159.41 - Step 5: Solve for x
x = 1,037,458,162,159.41/1,107,549.24 - Step 6: Final answer
x = 936,715.16
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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.