Finding the Fourth Proportional to 720,391.05, 1,080,747 and 214,960.77
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Solution
The fourth proportional to 720,391.05, 1,080,747 and 214,960.77 is: 322,489.02
Step by Step Solution
- Step 1: Write the proportion equation
720,391.05 : 1,080,747 = 214,960.77 : x - Step 2: Convert to fraction form
720,391.05/1,080,747 = 214,960.77/x - Step 3: Cross multiply
720,391.05x = 1,080,747 × 214,960.77 - Step 4: Simplify right side
720,391.05x = 232,318,207,295.19 - Step 5: Solve for x
x = 232,318,207,295.19/720,391.05 - Step 6: Final answer
x = 322,489.02
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1.5x scale
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.