Finding the Fourth Proportional to 905,623.80, 1,358,435.70 and 433,231.80
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Solution
The fourth proportional to 905,623.80, 1,358,435.70 and 433,231.80 is: 649,847.70
Step by Step Solution
- Step 1: Write the proportion equation
905,623.80 : 1,358,435.70 = 433,231.80 : x - Step 2: Convert to fraction form
905,623.80/1,358,435.70 = 433,231.80/x - Step 3: Cross multiply
905,623.80x = 1,358,435.70 × 433,231.80 - Step 4: Simplify right side
905,623.80x = 588,517,543,495.26 - Step 5: Solve for x
x = 588,517,543,495.26/905,623.80 - Step 6: Final answer
x = 649,847.70
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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.