Finding the Fourth Proportional to 878,661.20, 1,318,239.84 and 247,580.48
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Solution
The fourth proportional to 878,661.20, 1,318,239.84 and 247,580.48 is: 371,440.61
Step by Step Solution
- Step 1: Write the proportion equation
878,661.20 : 1,318,239.84 = 247,580.48 : x - Step 2: Convert to fraction form
878,661.20/1,318,239.84 = 247,580.48/x - Step 3: Cross multiply
878,661.20x = 1,318,239.84 × 247,580.48 - Step 4: Simplify right side
878,661.20x = 326,370,452,342.32 - Step 5: Solve for x
x = 326,370,452,342.32/878,661.20 - Step 6: Final answer
x = 371,440.61
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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.