Finding the Fourth Proportional to 415,277.40, 622,397.70 and 304,339.80
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Solution
The fourth proportional to 415,277.40, 622,397.70 and 304,339.80 is: 456,129.79
Step by Step Solution
- Step 1: Write the proportion equation
415,277.40 : 622,397.70 = 304,339.80 : x - Step 2: Convert to fraction form
415,277.40/622,397.70 = 304,339.80/x - Step 3: Cross multiply
415,277.40x = 622,397.70 × 304,339.80 - Step 4: Simplify right side
415,277.40x = 189,420,391,538.46 - Step 5: Solve for x
x = 189,420,391,538.46/415,277.40 - Step 6: Final answer
x = 456,129.79
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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.