Finding the Fourth Proportional to 452,626.18, 678,938.36 and 115,666.79
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Solution
The fourth proportional to 452,626.18, 678,938.36 and 115,666.79 is: 173,499.94
Step by Step Solution
- Step 1: Write the proportion equation
452,626.18 : 678,938.36 = 115,666.79 : x - Step 2: Convert to fraction form
452,626.18/678,938.36 = 115,666.79/x - Step 3: Cross multiply
452,626.18x = 678,938.36 × 115,666.79 - Step 4: Simplify right side
452,626.18x = 78,530,616,736.04 - Step 5: Solve for x
x = 78,530,616,736.04/452,626.18 - Step 6: Final answer
x = 173,499.94
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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.