Finding the Fourth Proportional to 460,805.02, 691,206.99 and 128,381.02
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Solution
The fourth proportional to 460,805.02, 691,206.99 and 128,381.02 is: 192,571.38
Step by Step Solution
- Step 1: Write the proportion equation
460,805.02 : 691,206.99 = 128,381.02 : x - Step 2: Convert to fraction form
460,805.02/691,206.99 = 128,381.02/x - Step 3: Cross multiply
460,805.02x = 691,206.99 × 128,381.02 - Step 4: Simplify right side
460,805.02x = 88,737,858,407.33 - Step 5: Solve for x
x = 88,737,858,407.33/460,805.02 - Step 6: Final answer
x = 192,571.38
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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.