Finding the Fourth Proportional to 775,538.88, 1,070,243.67 and 453,519.55
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Solution
The fourth proportional to 775,538.88, 1,070,243.67 and 453,519.55 is: 625,856.99
Step by Step Solution
- Step 1: Write the proportion equation
775,538.88 : 1,070,243.67 = 453,519.55 : x - Step 2: Convert to fraction form
775,538.88/1,070,243.67 = 453,519.55/x - Step 3: Cross multiply
775,538.88x = 1,070,243.67 × 453,519.55 - Step 4: Simplify right side
775,538.88x = 485,376,427,608.75 - Step 5: Solve for x
x = 485,376,427,608.75/775,538.88 - Step 6: Final answer
x = 625,856.99
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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.