Finding the Fourth Proportional to 408,305.42, 611,260.46 and 286,302.92
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Solution
The fourth proportional to 408,305.42, 611,260.46 and 286,302.92 is: 428,614.58
Step by Step Solution
- Step 1: Write the proportion equation
408,305.42 : 611,260.46 = 286,302.92 : x - Step 2: Convert to fraction form
408,305.42/611,260.46 = 286,302.92/x - Step 3: Cross multiply
408,305.42x = 611,260.46 × 286,302.92 - Step 4: Simplify right side
408,305.42x = 175,005,654,578.54 - Step 5: Solve for x
x = 175,005,654,578.54/408,305.42 - Step 6: Final answer
x = 428,614.58
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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.