Finding the Fourth Proportional to 485,387.48, 728,409.12 and 169,847.12
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Solution
The fourth proportional to 485,387.48, 728,409.12 and 169,847.12 is: 254,885.42
Step by Step Solution
- Step 1: Write the proportion equation
485,387.48 : 728,409.12 = 169,847.12 : x - Step 2: Convert to fraction form
485,387.48/728,409.12 = 169,847.12/x - Step 3: Cross multiply
485,387.48x = 728,409.12 × 169,847.12 - Step 4: Simplify right side
485,387.48x = 123,718,191,213.73 - Step 5: Solve for x
x = 123,718,191,213.73/485,387.48 - Step 6: Final answer
x = 254,885.42
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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.