Finding the Fourth Proportional to 826,483.19, 1,239,243.09 and 320,453.00
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Solution
The fourth proportional to 826,483.19, 1,239,243.09 and 320,453.00 is: 480,492.73
Step by Step Solution
- Step 1: Write the proportion equation
826,483.19 : 1,239,243.09 = 320,453.00 : x - Step 2: Convert to fraction form
826,483.19/1,239,243.09 = 320,453.00/x - Step 3: Cross multiply
826,483.19x = 1,239,243.09 × 320,453.00 - Step 4: Simplify right side
826,483.19x = 397,119,159,723.56 - Step 5: Solve for x
x = 397,119,159,723.56/826,483.19 - Step 6: Final answer
x = 480,492.73
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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.