Finding the Fourth Proportional to 603,129.76, 903,316.72 and 287,808.12
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Solution
The fourth proportional to 603,129.76, 903,316.72 and 287,808.12 is: 431,054.65
Step by Step Solution
- Step 1: Write the proportion equation
603,129.76 : 903,316.72 = 287,808.12 : x - Step 2: Convert to fraction form
603,129.76/903,316.72 = 287,808.12/x - Step 3: Cross multiply
603,129.76x = 903,316.72 × 287,808.12 - Step 4: Simplify right side
603,129.76x = 259,981,886,947.77 - Step 5: Solve for x
x = 259,981,886,947.77/603,129.76 - Step 6: Final answer
x = 431,054.65
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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.