Finding the Fourth Proportional to 456,476.80, 684,715.20 and 344,939.80
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Solution
The fourth proportional to 456,476.80, 684,715.20 and 344,939.80 is: 517,409.70
Step by Step Solution
- Step 1: Write the proportion equation
456,476.80 : 684,715.20 = 344,939.80 : x - Step 2: Convert to fraction form
456,476.80/684,715.20 = 344,939.80/x - Step 3: Cross multiply
456,476.80x = 684,715.20 × 344,939.80 - Step 4: Simplify right side
456,476.80x = 236,185,524,144.96 - Step 5: Solve for x
x = 236,185,524,144.96/456,476.80 - Step 6: Final answer
x = 517,409.70
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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.