Finding the Fourth Proportional to 420,164.91, 579,872.49 and 256,917.09
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Solution
The fourth proportional to 420,164.91, 579,872.49 and 256,917.09 is: 354,573.05
Step by Step Solution
- Step 1: Write the proportion equation
420,164.91 : 579,872.49 = 256,917.09 : x - Step 2: Convert to fraction form
420,164.91/579,872.49 = 256,917.09/x - Step 3: Cross multiply
420,164.91x = 579,872.49 × 256,917.09 - Step 4: Simplify right side
420,164.91x = 148,979,152,701.85 - Step 5: Solve for x
x = 148,979,152,701.85/420,164.91 - Step 6: Final answer
x = 354,573.05
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.