Finding the Fourth Proportional to 814,658.18, 1,221,987.18 and 253,736.42
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Solution
The fourth proportional to 814,658.18, 1,221,987.18 and 253,736.42 is: 380,604.60
Step by Step Solution
- Step 1: Write the proportion equation
814,658.18 : 1,221,987.18 = 253,736.42 : x - Step 2: Convert to fraction form
814,658.18/1,221,987.18 = 253,736.42/x - Step 3: Cross multiply
814,658.18x = 1,221,987.18 × 253,736.42 - Step 4: Simplify right side
814,658.18x = 310,062,652,339.10 - Step 5: Solve for x
x = 310,062,652,339.10/814,658.18 - Step 6: Final answer
x = 380,604.60
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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.