Finding the Fourth Proportional to 291,789.20, 437,620.62 and 78,551.84
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Solution
The fourth proportional to 291,789.20, 437,620.62 and 78,551.84 is: 117,810.75
Step by Step Solution
- Step 1: Write the proportion equation
291,789.20 : 437,620.62 = 78,551.84 : x - Step 2: Convert to fraction form
291,789.20/437,620.62 = 78,551.84/x - Step 3: Cross multiply
291,789.20x = 437,620.62 × 78,551.84 - Step 4: Simplify right side
291,789.20x = 34,375,904,922.94 - Step 5: Solve for x
x = 34,375,904,922.94/291,789.20 - Step 6: Final answer
x = 117,810.75
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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.