Finding the Fourth Proportional to 782,992.68, 1,080,493.74 and 443,463.36
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Solution
The fourth proportional to 782,992.68, 1,080,493.74 and 443,463.36 is: 611,958.96
Step by Step Solution
- Step 1: Write the proportion equation
782,992.68 : 1,080,493.74 = 443,463.36 : x - Step 2: Convert to fraction form
782,992.68/1,080,493.74 = 443,463.36/x - Step 3: Cross multiply
782,992.68x = 1,080,493.74 × 443,463.36 - Step 4: Simplify right side
782,992.68x = 479,159,384,399.37 - Step 5: Solve for x
x = 479,159,384,399.37/782,992.68 - Step 6: Final answer
x = 611,958.96
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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.