Finding the Fourth Proportional to 669,063.88, 923,310.94 and 363,140.70
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Solution
The fourth proportional to 669,063.88, 923,310.94 and 363,140.70 is: 501,135.68
Step by Step Solution
- Step 1: Write the proportion equation
669,063.88 : 923,310.94 = 363,140.70 : x - Step 2: Convert to fraction form
669,063.88/923,310.94 = 363,140.70/x - Step 3: Cross multiply
669,063.88x = 923,310.94 × 363,140.70 - Step 4: Simplify right side
669,063.88x = 335,291,781,069.26 - Step 5: Solve for x
x = 335,291,781,069.26/669,063.88 - Step 6: Final answer
x = 501,135.68
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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.