Finding the Fourth Proportional to 612,005.40, 917,376.30 and 275,207.40
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Solution
The fourth proportional to 612,005.40, 917,376.30 and 275,207.40 is: 412,526.99
Step by Step Solution
- Step 1: Write the proportion equation
612,005.40 : 917,376.30 = 275,207.40 : x - Step 2: Convert to fraction form
612,005.40/917,376.30 = 275,207.40/x - Step 3: Cross multiply
612,005.40x = 917,376.30 × 275,207.40 - Step 4: Simplify right side
612,005.40x = 252,468,746,344.62 - Step 5: Solve for x
x = 252,468,746,344.62/612,005.40 - Step 6: Final answer
x = 412,526.99
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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.