Finding the Fourth Proportional to 485,968.99, 729,199.45 and 327,865.29
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Solution
The fourth proportional to 485,968.99, 729,199.45 and 327,865.29 is: 491,963.88
Step by Step Solution
- Step 1: Write the proportion equation
485,968.99 : 729,199.45 = 327,865.29 : x - Step 2: Convert to fraction form
485,968.99/729,199.45 = 327,865.29/x - Step 3: Cross multiply
485,968.99x = 729,199.45 × 327,865.29 - Step 4: Simplify right side
485,968.99x = 239,079,189,142.09 - Step 5: Solve for x
x = 239,079,189,142.09/485,968.99 - Step 6: Final answer
x = 491,963.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.