Finding the Fourth Proportional to 839,958.18, 1,159,113.42 and 477,375.72
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Solution
The fourth proportional to 839,958.18, 1,159,113.42 and 477,375.72 is: 658,762.09
Step by Step Solution
- Step 1: Write the proportion equation
839,958.18 : 1,159,113.42 = 477,375.72 : x - Step 2: Convert to fraction form
839,958.18/1,159,113.42 = 477,375.72/x - Step 3: Cross multiply
839,958.18x = 1,159,113.42 × 477,375.72 - Step 4: Simplify right side
839,958.18x = 553,332,603,434.16 - Step 5: Solve for x
x = 553,332,603,434.16/839,958.18 - Step 6: Final answer
x = 658,762.09
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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.