Finding the Fourth Proportional to 719,614.68, 993,042.54 and 397,318.20
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Solution
The fourth proportional to 719,614.68, 993,042.54 and 397,318.20 is: 548,284.92
Step by Step Solution
- Step 1: Write the proportion equation
719,614.68 : 993,042.54 = 397,318.20 : x - Step 2: Convert to fraction form
719,614.68/993,042.54 = 397,318.20/x - Step 3: Cross multiply
719,614.68x = 993,042.54 × 397,318.20 - Step 4: Simplify right side
719,614.68x = 394,553,874,516.23 - Step 5: Solve for x
x = 394,553,874,516.23/719,614.68 - Step 6: Final answer
x = 548,284.92
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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.