Finding the Fourth Proportional to 913,425.46, 1,260,517.85 and 505,528.09
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Solution
The fourth proportional to 913,425.46, 1,260,517.85 and 505,528.09 is: 697,623.62
Step by Step Solution
- Step 1: Write the proportion equation
913,425.46 : 1,260,517.85 = 505,528.09 : x - Step 2: Convert to fraction form
913,425.46/1,260,517.85 = 505,528.09/x - Step 3: Cross multiply
913,425.46x = 1,260,517.85 × 505,528.09 - Step 4: Simplify right side
913,425.46x = 637,227,177,338.20 - Step 5: Solve for x
x = 637,227,177,338.20/913,425.46 - Step 6: Final answer
x = 697,623.62
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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.