Finding the Fourth Proportional to 919,027.67, 1,268,246.90 and 516,619.67
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Solution
The fourth proportional to 919,027.67, 1,268,246.90 and 516,619.67 is: 712,928.80
Step by Step Solution
- Step 1: Write the proportion equation
919,027.67 : 1,268,246.90 = 516,619.67 : x - Step 2: Convert to fraction form
919,027.67/1,268,246.90 = 516,619.67/x - Step 3: Cross multiply
919,027.67x = 1,268,246.90 × 516,619.67 - Step 4: Simplify right side
919,027.67x = 655,201,289,906.84 - Step 5: Solve for x
x = 655,201,289,906.84/919,027.67 - Step 6: Final answer
x = 712,928.80
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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.