Finding the Fourth Proportional to 729,990.24, 1,096,929.36 and 393,289.44
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Solution
The fourth proportional to 729,990.24, 1,096,929.36 and 393,289.44 is: 590,981.51
Step by Step Solution
- Step 1: Write the proportion equation
729,990.24 : 1,096,929.36 = 393,289.44 : x - Step 2: Convert to fraction form
729,990.24/1,096,929.36 = 393,289.44/x - Step 3: Cross multiply
729,990.24x = 1,096,929.36 × 393,289.44 - Step 4: Simplify right side
729,990.24x = 431,410,733,713.96 - Step 5: Solve for x
x = 431,410,733,713.96/729,990.24 - Step 6: Final answer
x = 590,981.51
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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.