Finding the Fourth Proportional to 878,660.20, 1,318,238.34 and 247,579.48
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Solution
The fourth proportional to 878,660.20, 1,318,238.34 and 247,579.48 is: 371,439.11
Step by Step Solution
- Step 1: Write the proportion equation
878,660.20 : 1,318,238.34 = 247,579.48 : x - Step 2: Convert to fraction form
878,660.20/1,318,238.34 = 247,579.48/x - Step 3: Cross multiply
878,660.20x = 1,318,238.34 × 247,579.48 - Step 4: Simplify right side
878,660.20x = 326,368,762,733.26 - Step 5: Solve for x
x = 326,368,762,733.26/878,660.20 - Step 6: Final answer
x = 371,439.11
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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.