Finding the Fourth Proportional to 479,405.21, 661,575.02 and 261,618.19
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Solution
The fourth proportional to 479,405.21, 661,575.02 and 261,618.19 is: 361,030.82
Step by Step Solution
- Step 1: Write the proportion equation
479,405.21 : 661,575.02 = 261,618.19 : x - Step 2: Convert to fraction form
479,405.21/661,575.02 = 261,618.19/x - Step 3: Cross multiply
479,405.21x = 661,575.02 × 261,618.19 - Step 4: Simplify right side
479,405.21x = 173,080,056,319.59 - Step 5: Solve for x
x = 173,080,056,319.59/479,405.21 - Step 6: Final answer
x = 361,030.82
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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.