Finding the Fourth Proportional to 694,313.42, 1,040,125.05 and 393,885.20
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Solution
The fourth proportional to 694,313.42, 1,040,125.05 and 393,885.20 is: 590,064.73
Step by Step Solution
- Step 1: Write the proportion equation
694,313.42 : 1,040,125.05 = 393,885.20 : x - Step 2: Convert to fraction form
694,313.42/1,040,125.05 = 393,885.20/x - Step 3: Cross multiply
694,313.42x = 1,040,125.05 × 393,885.20 - Step 4: Simplify right side
694,313.42x = 409,689,863,344.26 - Step 5: Solve for x
x = 409,689,863,344.26/694,313.42 - Step 6: Final answer
x = 590,064.73
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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.