Finding the Fourth Proportional to 426,108.31, 587,818.80 and 278,845.99
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Solution
The fourth proportional to 426,108.31, 587,818.80 and 278,845.99 is: 384,669.60
Step by Step Solution
- Step 1: Write the proportion equation
426,108.31 : 587,818.80 = 278,845.99 : x - Step 2: Convert to fraction form
426,108.31/587,818.80 = 278,845.99/x - Step 3: Cross multiply
426,108.31x = 587,818.80 × 278,845.99 - Step 4: Simplify right side
426,108.31x = 163,910,913,757.07 - Step 5: Solve for x
x = 163,910,913,757.07/426,108.31 - Step 6: Final answer
x = 384,669.60
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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.