Finding the Fourth Proportional to 403,757.80, 604,956.30 and 319,193.80
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Solution
The fourth proportional to 403,757.80, 604,956.30 and 319,193.80 is: 478,252.80
Step by Step Solution
- Step 1: Write the proportion equation
403,757.80 : 604,956.30 = 319,193.80 : x - Step 2: Convert to fraction form
403,757.80/604,956.30 = 319,193.80/x - Step 3: Cross multiply
403,757.80x = 604,956.30 × 319,193.80 - Step 4: Simplify right side
403,757.80x = 193,098,300,230.94 - Step 5: Solve for x
x = 193,098,300,230.94/403,757.80 - Step 6: Final answer
x = 478,252.80
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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.