Finding the Fourth Proportional to 920,864.19, 1,380,248.84 and 560,240.10
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Solution
The fourth proportional to 920,864.19, 1,380,248.84 and 560,240.10 is: 839,722.90
Step by Step Solution
- Step 1: Write the proportion equation
920,864.19 : 1,380,248.84 = 560,240.10 : x - Step 2: Convert to fraction form
920,864.19/1,380,248.84 = 560,240.10/x - Step 3: Cross multiply
920,864.19x = 1,380,248.84 × 560,240.10 - Step 4: Simplify right side
920,864.19x = 773,270,752,622.12 - Step 5: Solve for x
x = 773,270,752,622.12/920,864.19 - Step 6: Final answer
x = 839,722.90
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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.