Finding the Fourth Proportional to 745,144.29, 1,116,836.37 and 318,555.36
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Solution
The fourth proportional to 745,144.29, 1,116,836.37 and 318,555.36 is: 477,456.80
Step by Step Solution
- Step 1: Write the proportion equation
745,144.29 : 1,116,836.37 = 318,555.36 : x - Step 2: Convert to fraction form
745,144.29/1,116,836.37 = 318,555.36/x - Step 3: Cross multiply
745,144.29x = 1,116,836.37 × 318,555.36 - Step 4: Simplify right side
745,144.29x = 355,774,211,906.44 - Step 5: Solve for x
x = 355,774,211,906.44/745,144.29 - Step 6: Final answer
x = 477,456.80
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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.