Finding the Fourth Proportional to 636,310.76, 878,114.76 and 349,832.88
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Solution
The fourth proportional to 636,310.76, 878,114.76 and 349,832.88 is: 482,772.62
Step by Step Solution
- Step 1: Write the proportion equation
636,310.76 : 878,114.76 = 349,832.88 : x - Step 2: Convert to fraction form
636,310.76/878,114.76 = 349,832.88/x - Step 3: Cross multiply
636,310.76x = 878,114.76 × 349,832.88 - Step 4: Simplify right side
636,310.76x = 307,193,415,461.31 - Step 5: Solve for x
x = 307,193,415,461.31/636,310.76 - Step 6: Final answer
x = 482,772.62
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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.