Finding the Fourth Proportional to 971,631.91, 1,340,853.84 and 541,939.75
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Solution
The fourth proportional to 971,631.91, 1,340,853.84 and 541,939.75 is: 747,877.86
Step by Step Solution
- Step 1: Write the proportion equation
971,631.91 : 1,340,853.84 = 541,939.75 : x - Step 2: Convert to fraction form
971,631.91/1,340,853.84 = 541,939.75/x - Step 3: Cross multiply
971,631.91x = 1,340,853.84 × 541,939.75 - Step 4: Simplify right side
971,631.91x = 726,661,994,836.14 - Step 5: Solve for x
x = 726,661,994,836.14/971,631.91 - Step 6: Final answer
x = 747,877.86
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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.