Finding the Fourth Proportional to 777,437.12, 1,072,821.84 and 437,883.50
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Solution
The fourth proportional to 777,437.12, 1,072,821.84 and 437,883.50 is: 604,255.92
Step by Step Solution
- Step 1: Write the proportion equation
777,437.12 : 1,072,821.84 = 437,883.50 : x - Step 2: Convert to fraction form
777,437.12/1,072,821.84 = 437,883.50/x - Step 3: Cross multiply
777,437.12x = 1,072,821.84 × 437,883.50 - Step 4: Simplify right side
777,437.12x = 469,770,982,175.64 - Step 5: Solve for x
x = 469,770,982,175.64/777,437.12 - Step 6: Final answer
x = 604,255.92
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1.5x scale
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.