Finding the Fourth Proportional to 659,220.20, 987,518.10 and 343,854.80
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Solution
The fourth proportional to 659,220.20, 987,518.10 and 343,854.80 is: 515,097.75
Step by Step Solution
- Step 1: Write the proportion equation
659,220.20 : 987,518.10 = 343,854.80 : x - Step 2: Convert to fraction form
659,220.20/987,518.10 = 343,854.80/x - Step 3: Cross multiply
659,220.20x = 987,518.10 × 343,854.80 - Step 4: Simplify right side
659,220.20x = 339,562,838,771.88 - Step 5: Solve for x
x = 339,562,838,771.88/659,220.20 - Step 6: Final answer
x = 515,097.75
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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.