Finding the Fourth Proportional to 905,843.80, 1,358,768.94 and 274,763.08
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Solution
The fourth proportional to 905,843.80, 1,358,768.94 and 274,763.08 is: 412,145.60
Step by Step Solution
- Step 1: Write the proportion equation
905,843.80 : 1,358,768.94 = 274,763.08 : x - Step 2: Convert to fraction form
905,843.80/1,358,768.94 = 274,763.08/x - Step 3: Cross multiply
905,843.80x = 1,358,768.94 × 274,763.08 - Step 4: Simplify right side
905,843.80x = 373,339,538,962.74 - Step 5: Solve for x
x = 373,339,538,962.74/905,843.80 - Step 6: Final answer
x = 412,145.60
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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.