Finding the Fourth Proportional to 289,784.97, 434,630.79 and 79,373.70
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Solution
The fourth proportional to 289,784.97, 434,630.79 and 79,373.70 is: 119,047.77
Step by Step Solution
- Step 1: Write the proportion equation
289,784.97 : 434,630.79 = 79,373.70 : x - Step 2: Convert to fraction form
289,784.97/434,630.79 = 79,373.70/x - Step 3: Cross multiply
289,784.97x = 434,630.79 × 79,373.70 - Step 4: Simplify right side
289,784.97x = 34,498,253,936.22 - Step 5: Solve for x
x = 34,498,253,936.22/289,784.97 - Step 6: Final answer
x = 119,047.77
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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.