Finding the Fourth Proportional to 759,240.11, 1,138,630.12 and 399,216.96
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Solution
The fourth proportional to 759,240.11, 1,138,630.12 and 399,216.96 is: 598,704.48
Step by Step Solution
- Step 1: Write the proportion equation
759,240.11 : 1,138,630.12 = 399,216.96 : x - Step 2: Convert to fraction form
759,240.11/1,138,630.12 = 399,216.96/x - Step 3: Cross multiply
759,240.11x = 1,138,630.12 × 399,216.96 - Step 4: Simplify right side
759,240.11x = 454,560,454,072.79 - Step 5: Solve for x
x = 454,560,454,072.79/759,240.11 - Step 6: Final answer
x = 598,704.48
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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.