Finding the Fourth Proportional to 397,405.40, 596,108.10 and 353,859.80
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Solution
The fourth proportional to 397,405.40, 596,108.10 and 353,859.80 is: 530,789.70
Step by Step Solution
- Step 1: Write the proportion equation
397,405.40 : 596,108.10 = 353,859.80 : x - Step 2: Convert to fraction form
397,405.40/596,108.10 = 353,859.80/x - Step 3: Cross multiply
397,405.40x = 596,108.10 × 353,859.80 - Step 4: Simplify right side
397,405.40x = 210,938,693,044.38 - Step 5: Solve for x
x = 210,938,693,044.38/397,405.40 - Step 6: Final answer
x = 530,789.70
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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.