Finding the Fourth Proportional to 519,892.08, 717,451.20 and 281,428.08
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Solution
The fourth proportional to 519,892.08, 717,451.20 and 281,428.08 is: 388,370.82
Step by Step Solution
- Step 1: Write the proportion equation
519,892.08 : 717,451.20 = 281,428.08 : x - Step 2: Convert to fraction form
519,892.08/717,451.20 = 281,428.08/x - Step 3: Cross multiply
519,892.08x = 717,451.20 × 281,428.08 - Step 4: Simplify right side
519,892.08x = 201,910,913,709.70 - Step 5: Solve for x
x = 201,910,913,709.70/519,892.08 - Step 6: Final answer
x = 388,370.82
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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.