Finding the Fourth Proportional to 413,062.20, 619,593.30 and 397,315.80
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Solution
The fourth proportional to 413,062.20, 619,593.30 and 397,315.80 is: 595,973.70
Step by Step Solution
- Step 1: Write the proportion equation
413,062.20 : 619,593.30 = 397,315.80 : x - Step 2: Convert to fraction form
413,062.20/619,593.30 = 397,315.80/x - Step 3: Cross multiply
413,062.20x = 619,593.30 × 397,315.80 - Step 4: Simplify right side
413,062.20x = 246,174,207,664.14 - Step 5: Solve for x
x = 246,174,207,664.14/413,062.20 - Step 6: Final answer
x = 595,973.70
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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.