Finding the Fourth Proportional to 1,125,892.18, 1,689,725.84 and 416,123.20
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Solution
The fourth proportional to 1,125,892.18, 1,689,725.84 and 416,123.20 is: 624,512.84
Step by Step Solution
- Step 1: Write the proportion equation
1,125,892.18 : 1,689,725.84 = 416,123.20 : x - Step 2: Convert to fraction form
1,125,892.18/1,689,725.84 = 416,123.20/x - Step 3: Cross multiply
1,125,892.18x = 1,689,725.84 × 416,123.20 - Step 4: Simplify right side
1,125,892.18x = 703,134,123,663.49 - Step 5: Solve for x
x = 703,134,123,663.49/1,125,892.18 - Step 6: Final answer
x = 624,512.84
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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.