Finding the Fourth Proportional to 957,770.12, 1,321,782.18 and 528,049.52
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Solution
The fourth proportional to 957,770.12, 1,321,782.18 and 528,049.52 is: 728,741.09
Step by Step Solution
- Step 1: Write the proportion equation
957,770.12 : 1,321,782.18 = 528,049.52 : x - Step 2: Convert to fraction form
957,770.12/1,321,782.18 = 528,049.52/x - Step 3: Cross multiply
957,770.12x = 1,321,782.18 × 528,049.52 - Step 4: Simplify right side
957,770.12x = 697,966,445,693.55 - Step 5: Solve for x
x = 697,966,445,693.55/957,770.12 - Step 6: Final answer
x = 728,741.09
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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.