Finding the Fourth Proportional to 306,040.80, 428,899.99 and 306,040.80
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Solution
The fourth proportional to 306,040.80, 428,899.99 and 306,040.80 is: 428,899.99
Step by Step Solution
- Step 1: Write the proportion equation
306,040.80 : 428,899.99 = 306,040.80 : x - Step 2: Convert to fraction form
306,040.80/428,899.99 = 306,040.80/x - Step 3: Cross multiply
306,040.80x = 428,899.99 × 306,040.80 - Step 4: Simplify right side
306,040.80x = 131,260,896,059.59 - Step 5: Solve for x
x = 131,260,896,059.59/306,040.80 - Step 6: Final answer
x = 428,899.99
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.