Finding the Fourth Proportional to 612,487.62, 918,917.92 and 313,178.44
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Solution
The fourth proportional to 612,487.62, 918,917.92 and 313,178.44 is: 469,863.02
Step by Step Solution
- Step 1: Write the proportion equation
612,487.62 : 918,917.92 = 313,178.44 : x - Step 2: Convert to fraction form
612,487.62/918,917.92 = 313,178.44/x - Step 3: Cross multiply
612,487.62x = 918,917.92 × 313,178.44 - Step 4: Simplify right side
612,487.62x = 287,785,280,673.65 - Step 5: Solve for x
x = 287,785,280,673.65/612,487.62 - Step 6: Final answer
x = 469,863.02
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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.