Finding the Fourth Proportional to 490,102.80, 687,543.60 and 490,102.80
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Solution
The fourth proportional to 490,102.80, 687,543.60 and 490,102.80 is: 687,543.60
Step by Step Solution
- Step 1: Write the proportion equation
490,102.80 : 687,543.60 = 490,102.80 : x - Step 2: Convert to fraction form
490,102.80/687,543.60 = 490,102.80/x - Step 3: Cross multiply
490,102.80x = 687,543.60 × 490,102.80 - Step 4: Simplify right side
490,102.80x = 336,967,043,482.08 - Step 5: Solve for x
x = 336,967,043,482.08/490,102.80 - Step 6: Final answer
x = 687,543.60
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.