Finding the Fourth Proportional to 548,201.80, 822,302.70 and 312,005.80
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Solution
The fourth proportional to 548,201.80, 822,302.70 and 312,005.80 is: 468,008.70
Step by Step Solution
- Step 1: Write the proportion equation
548,201.80 : 822,302.70 = 312,005.80 : x - Step 2: Convert to fraction form
548,201.80/822,302.70 = 312,005.80/x - Step 3: Cross multiply
548,201.80x = 822,302.70 × 312,005.80 - Step 4: Simplify right side
548,201.80x = 256,563,211,755.66 - Step 5: Solve for x
x = 256,563,211,755.66/548,201.80 - Step 6: Final answer
x = 468,008.70
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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.