Finding the Fourth Proportional to 998,558.80, 1,497,838.20 and 324,638.80
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Solution
The fourth proportional to 998,558.80, 1,497,838.20 and 324,638.80 is: 486,958.20
Step by Step Solution
- Step 1: Write the proportion equation
998,558.80 : 1,497,838.20 = 324,638.80 : x - Step 2: Convert to fraction form
998,558.80/1,497,838.20 = 324,638.80/x - Step 3: Cross multiply
998,558.80x = 1,497,838.20 × 324,638.80 - Step 4: Simplify right side
998,558.80x = 486,256,395,842.16 - Step 5: Solve for x
x = 486,256,395,842.16/998,558.80 - Step 6: Final answer
x = 486,958.20
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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.