Finding the Fourth Proportional to 754,235.55, 1,131,353.33 and 515,087.10
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Solution
The fourth proportional to 754,235.55, 1,131,353.33 and 515,087.10 is: 772,630.65
Step by Step Solution
- Step 1: Write the proportion equation
754,235.55 : 1,131,353.33 = 515,087.10 : x - Step 2: Convert to fraction form
754,235.55/1,131,353.33 = 515,087.10/x - Step 3: Cross multiply
754,235.55x = 1,131,353.33 × 515,087.10 - Step 4: Simplify right side
754,235.55x = 582,745,503,249.61 - Step 5: Solve for x
x = 582,745,503,249.61/754,235.55 - Step 6: Final answer
x = 772,630.65
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Double scale
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Similar ratio
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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.