Finding the Fourth Proportional to 431,230.80, 645,679.80 and 337,918.80
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Solution
The fourth proportional to 431,230.80, 645,679.80 and 337,918.80 is: 505,964.19
Step by Step Solution
- Step 1: Write the proportion equation
431,230.80 : 645,679.80 = 337,918.80 : x - Step 2: Convert to fraction form
431,230.80/645,679.80 = 337,918.80/x - Step 3: Cross multiply
431,230.80x = 645,679.80 × 337,918.80 - Step 4: Simplify right side
431,230.80x = 218,187,343,200.24 - Step 5: Solve for x
x = 218,187,343,200.24/431,230.80 - Step 6: Final answer
x = 505,964.19
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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.