Finding the Fourth Proportional to 809,631.26, 1,214,867.18 and 330,210.79
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Solution
The fourth proportional to 809,631.26, 1,214,867.18 and 330,210.79 is: 495,487.60
Step by Step Solution
- Step 1: Write the proportion equation
809,631.26 : 1,214,867.18 = 330,210.79 : x - Step 2: Convert to fraction form
809,631.26/1,214,867.18 = 330,210.79/x - Step 3: Cross multiply
809,631.26x = 1,214,867.18 × 330,210.79 - Step 4: Simplify right side
809,631.26x = 401,162,251,252.87 - Step 5: Solve for x
x = 401,162,251,252.87/809,631.26 - Step 6: Final answer
x = 495,487.60
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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.