Finding the Fourth Proportional to 667,058.70, 920,534.38 and 361,126.98
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Solution
The fourth proportional to 667,058.70, 920,534.38 and 361,126.98 is: 498,351.65
Step by Step Solution
- Step 1: Write the proportion equation
667,058.70 : 920,534.38 = 361,126.98 : x - Step 2: Convert to fraction form
667,058.70/920,534.38 = 361,126.98/x - Step 3: Cross multiply
667,058.70x = 920,534.38 × 361,126.98 - Step 4: Simplify right side
667,058.70x = 332,429,800,635.57 - Step 5: Solve for x
x = 332,429,800,635.57/667,058.70 - Step 6: Final answer
x = 498,351.65
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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.