Finding the Fourth Proportional to 424,922.06, 586,434.80 and 317,305.26
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Solution
The fourth proportional to 424,922.06, 586,434.80 and 317,305.26 is: 437,912.89
Step by Step Solution
- Step 1: Write the proportion equation
424,922.06 : 586,434.80 = 317,305.26 : x - Step 2: Convert to fraction form
424,922.06/586,434.80 = 317,305.26/x - Step 3: Cross multiply
424,922.06x = 586,434.80 × 317,305.26 - Step 4: Simplify right side
424,922.06x = 186,078,847,480.31 - Step 5: Solve for x
x = 186,078,847,480.31/424,922.06 - Step 6: Final answer
x = 437,912.89
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.