Finding the Fourth Proportional to 905,429.19, 1,358,144.04 and 336,735.99
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Solution
The fourth proportional to 905,429.19, 1,358,144.04 and 336,735.99 is: 505,104.08
Step by Step Solution
- Step 1: Write the proportion equation
905,429.19 : 1,358,144.04 = 336,735.99 : x - Step 2: Convert to fraction form
905,429.19/1,358,144.04 = 336,735.99/x - Step 3: Cross multiply
905,429.19x = 1,358,144.04 × 336,735.99 - Step 4: Simplify right side
905,429.19x = 457,335,977,872.00 - Step 5: Solve for x
x = 457,335,977,872.00/905,429.19 - Step 6: Final answer
x = 505,104.08
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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.