Finding the Fourth Proportional to 668,201.70, 1,002,302.55 and 313,907.70
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Solution
The fourth proportional to 668,201.70, 1,002,302.55 and 313,907.70 is: 470,861.55
Step by Step Solution
- Step 1: Write the proportion equation
668,201.70 : 1,002,302.55 = 313,907.70 : x - Step 2: Convert to fraction form
668,201.70/1,002,302.55 = 313,907.70/x - Step 3: Cross multiply
668,201.70x = 1,002,302.55 × 313,907.70 - Step 4: Simplify right side
668,201.70x = 314,630,488,174.64 - Step 5: Solve for x
x = 314,630,488,174.64/668,201.70 - Step 6: Final answer
x = 470,861.55
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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.