Finding the Fourth Proportional to 577,489.39, 796,912.50 and 319,349.58
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Solution
The fourth proportional to 577,489.39, 796,912.50 and 319,349.58 is: 440,689.78
Step by Step Solution
- Step 1: Write the proportion equation
577,489.39 : 796,912.50 = 319,349.58 : x - Step 2: Convert to fraction form
577,489.39/796,912.50 = 319,349.58/x - Step 3: Cross multiply
577,489.39x = 796,912.50 × 319,349.58 - Step 4: Simplify right side
577,489.39x = 254,493,672,171.75 - Step 5: Solve for x
x = 254,493,672,171.75/577,489.39 - Step 6: Final answer
x = 440,689.78
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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.