Finding the Fourth Proportional to 415,009.20, 622,513.80 and 204,619.80
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Solution
The fourth proportional to 415,009.20, 622,513.80 and 204,619.80 is: 306,929.70
Step by Step Solution
- Step 1: Write the proportion equation
415,009.20 : 622,513.80 = 204,619.80 : x - Step 2: Convert to fraction form
415,009.20/622,513.80 = 204,619.80/x - Step 3: Cross multiply
415,009.20x = 622,513.80 × 204,619.80 - Step 4: Simplify right side
415,009.20x = 127,378,649,253.24 - Step 5: Solve for x
x = 127,378,649,253.24/415,009.20 - Step 6: Final answer
x = 306,929.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.