Finding the Fourth Proportional to 486,478.09, 729,741.74 and 186,853.62
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Solution
The fourth proportional to 486,478.09, 729,741.74 and 186,853.62 is: 280,289.88
Step by Step Solution
- Step 1: Write the proportion equation
486,478.09 : 729,741.74 = 186,853.62 : x - Step 2: Convert to fraction form
486,478.09/729,741.74 = 186,853.62/x - Step 3: Cross multiply
486,478.09x = 729,741.74 × 186,853.62 - Step 4: Simplify right side
486,478.09x = 136,354,885,784.10 - Step 5: Solve for x
x = 136,354,885,784.10/486,478.09 - Step 6: Final answer
x = 280,289.88
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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.