Finding the Fourth Proportional to 324,420.74, 444,449.00 and 312,291.42
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Solution
The fourth proportional to 324,420.74, 444,449.00 and 312,291.42 is: 427,832.10
Step by Step Solution
- Step 1: Write the proportion equation
324,420.74 : 444,449.00 = 312,291.42 : x - Step 2: Convert to fraction form
324,420.74/444,449.00 = 312,291.42/x - Step 3: Cross multiply
324,420.74x = 444,449.00 × 312,291.42 - Step 4: Simplify right side
324,420.74x = 138,797,608,937.22 - Step 5: Solve for x
x = 138,797,608,937.22/324,420.74 - Step 6: Final answer
x = 427,832.10
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.