Finding the Fourth Proportional to 809,624.09, 1,214,856.44 and 330,203.62
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Solution
The fourth proportional to 809,624.09, 1,214,856.44 and 330,203.62 is: 495,476.85
Step by Step Solution
- Step 1: Write the proportion equation
809,624.09 : 1,214,856.44 = 330,203.62 : x - Step 2: Convert to fraction form
809,624.09/1,214,856.44 = 330,203.62/x - Step 3: Cross multiply
809,624.09x = 1,214,856.44 × 330,203.62 - Step 4: Simplify right side
809,624.09x = 401,149,989,580.15 - Step 5: Solve for x
x = 401,149,989,580.15/809,624.09 - Step 6: Final answer
x = 495,476.85
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1.5x scale
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.