Finding the Fourth Proportional to 862,808.09, 1,190,679.14 and 500,446.49
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Solution
The fourth proportional to 862,808.09, 1,190,679.14 and 500,446.49 is: 690,618.46
Step by Step Solution
- Step 1: Write the proportion equation
862,808.09 : 1,190,679.14 = 500,446.49 : x - Step 2: Convert to fraction form
862,808.09/1,190,679.14 = 500,446.49/x - Step 3: Cross multiply
862,808.09x = 1,190,679.14 × 500,446.49 - Step 4: Simplify right side
862,808.09x = 595,871,191,626.94 - Step 5: Solve for x
x = 595,871,191,626.94/862,808.09 - Step 6: Final answer
x = 690,618.46
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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.