Finding the Fourth Proportional to 855,056.16, 1,179,793.68 and 515,517.12
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Solution
The fourth proportional to 855,056.16, 1,179,793.68 and 515,517.12 is: 711,302.80
Step by Step Solution
- Step 1: Write the proportion equation
855,056.16 : 1,179,793.68 = 515,517.12 : x - Step 2: Convert to fraction form
855,056.16/1,179,793.68 = 515,517.12/x - Step 3: Cross multiply
855,056.16x = 1,179,793.68 × 515,517.12 - Step 4: Simplify right side
855,056.16x = 608,203,840,107.80 - Step 5: Solve for x
x = 608,203,840,107.80/855,056.16 - Step 6: Final answer
x = 711,302.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.