Finding the Fourth Proportional to 959,609.13, 1,324,261.37 and 615,443.99
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Solution
The fourth proportional to 959,609.13, 1,324,261.37 and 615,443.99 is: 849,313.20
Step by Step Solution
- Step 1: Write the proportion equation
959,609.13 : 1,324,261.37 = 615,443.99 : x - Step 2: Convert to fraction form
959,609.13/1,324,261.37 = 615,443.99/x - Step 3: Cross multiply
959,609.13x = 1,324,261.37 × 615,443.99 - Step 4: Simplify right side
959,609.13x = 815,008,699,106.11 - Step 5: Solve for x
x = 815,008,699,106.11/959,609.13 - Step 6: Final answer
x = 849,313.20
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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.