Finding the Fourth Proportional to 477,115.60, 715,672.94 and 122,129.06
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Solution
The fourth proportional to 477,115.60, 715,672.94 and 122,129.06 is: 183,193.47
Step by Step Solution
- Step 1: Write the proportion equation
477,115.60 : 715,672.94 = 122,129.06 : x - Step 2: Convert to fraction form
477,115.60/715,672.94 = 122,129.06/x - Step 3: Cross multiply
477,115.60x = 715,672.94 × 122,129.06 - Step 4: Simplify right side
477,115.60x = 87,404,463,429.64 - Step 5: Solve for x
x = 87,404,463,429.64/477,115.60 - Step 6: Final answer
x = 183,193.47
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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.