Finding the Fourth Proportional to 509,561.70, 703,234.35 and 305,620.44
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Solution
The fourth proportional to 509,561.70, 703,234.35 and 305,620.44 is: 421,779.72
Step by Step Solution
- Step 1: Write the proportion equation
509,561.70 : 703,234.35 = 305,620.44 : x - Step 2: Convert to fraction form
509,561.70/703,234.35 = 305,620.44/x - Step 3: Cross multiply
509,561.70x = 703,234.35 × 305,620.44 - Step 4: Simplify right side
509,561.70x = 214,922,791,470.11 - Step 5: Solve for x
x = 214,922,791,470.11/509,561.70 - Step 6: Final answer
x = 421,779.72
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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.