Finding the Fourth Proportional to 667,978.92, 921,809.58 and 366,175.08
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Solution
The fourth proportional to 667,978.92, 921,809.58 and 366,175.08 is: 505,320.88
Step by Step Solution
- Step 1: Write the proportion equation
667,978.92 : 921,809.58 = 366,175.08 : x - Step 2: Convert to fraction form
667,978.92/921,809.58 = 366,175.08/x - Step 3: Cross multiply
667,978.92x = 921,809.58 × 366,175.08 - Step 4: Simplify right side
667,978.92x = 337,543,696,701.27 - Step 5: Solve for x
x = 337,543,696,701.27/667,978.92 - Step 6: Final answer
x = 505,320.88
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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.