Finding the Fourth Proportional to 485,087.80, 727,631.70 and 366,989.80
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Solution
The fourth proportional to 485,087.80, 727,631.70 and 366,989.80 is: 550,484.70
Step by Step Solution
- Step 1: Write the proportion equation
485,087.80 : 727,631.70 = 366,989.80 : x - Step 2: Convert to fraction form
485,087.80/727,631.70 = 366,989.80/x - Step 3: Cross multiply
485,087.80x = 727,631.70 × 366,989.80 - Step 4: Simplify right side
485,087.80x = 267,033,412,056.66 - Step 5: Solve for x
x = 267,033,412,056.66/485,087.80 - Step 6: Final answer
x = 550,484.70
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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.