Finding the Fourth Proportional to 1,133,939.16, 1,700,970.84 and 459,920.40
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Solution
The fourth proportional to 1,133,939.16, 1,700,970.84 and 459,920.40 is: 689,905.79
Step by Step Solution
- Step 1: Write the proportion equation
1,133,939.16 : 1,700,970.84 = 459,920.40 : x - Step 2: Convert to fraction form
1,133,939.16/1,700,970.84 = 459,920.40/x - Step 3: Cross multiply
1,133,939.16x = 1,700,970.84 × 459,920.40 - Step 4: Simplify right side
1,133,939.16x = 782,311,189,121.14 - Step 5: Solve for x
x = 782,311,189,121.14/1,133,939.16 - Step 6: Final answer
x = 689,905.79
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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.