Finding the Fourth Proportional to 539,385.40, 744,631.68 and 394,027.97
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Solution
The fourth proportional to 539,385.40, 744,631.68 and 394,027.97 is: 543,963.01
Step by Step Solution
- Step 1: Write the proportion equation
539,385.40 : 744,631.68 = 394,027.97 : x - Step 2: Convert to fraction form
539,385.40/744,631.68 = 394,027.97/x - Step 3: Cross multiply
539,385.40x = 744,631.68 × 394,027.97 - Step 4: Simplify right side
539,385.40x = 293,405,705,983.19 - Step 5: Solve for x
x = 293,405,705,983.19/539,385.40 - Step 6: Final answer
x = 543,963.01
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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.