Finding the Fourth Proportional to 421,817.20, 632,541.48 and 126,260.08
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Solution
The fourth proportional to 421,817.20, 632,541.48 and 126,260.08 is: 189,334.95
Step by Step Solution
- Step 1: Write the proportion equation
421,817.20 : 632,541.48 = 126,260.08 : x - Step 2: Convert to fraction form
421,817.20/632,541.48 = 126,260.08/x - Step 3: Cross multiply
421,817.20x = 632,541.48 × 126,260.08 - Step 4: Simplify right side
421,817.20x = 79,864,737,868.12 - Step 5: Solve for x
x = 79,864,737,868.12/421,817.20 - Step 6: Final answer
x = 189,334.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.