Finding the Fourth Proportional to 858,793.65, 1,288,190.48 and 409,729.65
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Solution
The fourth proportional to 858,793.65, 1,288,190.48 and 409,729.65 is: 614,594.48
Step by Step Solution
- Step 1: Write the proportion equation
858,793.65 : 1,288,190.48 = 409,729.65 : x - Step 2: Convert to fraction form
858,793.65/1,288,190.48 = 409,729.65/x - Step 3: Cross multiply
858,793.65x = 1,288,190.48 × 409,729.65 - Step 4: Simplify right side
858,793.65x = 527,809,832,455.08 - Step 5: Solve for x
x = 527,809,832,455.08/858,793.65 - Step 6: Final answer
x = 614,594.48
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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.