Finding the Fourth Proportional to 414,909.60, 620,930.80 and 248,816.80
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Solution
The fourth proportional to 414,909.60, 620,930.80 and 248,816.80 is: 372,365.49
Step by Step Solution
- Step 1: Write the proportion equation
414,909.60 : 620,930.80 = 248,816.80 : x - Step 2: Convert to fraction form
414,909.60/620,930.80 = 248,816.80/x - Step 3: Cross multiply
414,909.60x = 620,930.80 × 248,816.80 - Step 4: Simplify right side
414,909.60x = 154,498,014,677.44 - Step 5: Solve for x
x = 154,498,014,677.44/414,909.60 - Step 6: Final answer
x = 372,365.49
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1.5x scale
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.