Finding the Fourth Proportional to 403,744.20, 604,960.20 and 347,319.60
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Solution
The fourth proportional to 403,744.20, 604,960.20 and 347,319.60 is: 520,414.99
Step by Step Solution
- Step 1: Write the proportion equation
403,744.20 : 604,960.20 = 347,319.60 : x - Step 2: Convert to fraction form
403,744.20/604,960.20 = 347,319.60/x - Step 3: Cross multiply
403,744.20x = 604,960.20 × 347,319.60 - Step 4: Simplify right side
403,744.20x = 210,114,534,679.92 - Step 5: Solve for x
x = 210,114,534,679.92/403,744.20 - Step 6: Final answer
x = 520,414.99
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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.