Finding the Fourth Proportional to 691,964.96, 954,908.88 and 374,012.96
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Solution
The fourth proportional to 691,964.96, 954,908.88 and 374,012.96 is: 516,136.39
Step by Step Solution
- Step 1: Write the proportion equation
691,964.96 : 954,908.88 = 374,012.96 : x - Step 2: Convert to fraction form
691,964.96/954,908.88 = 374,012.96/x - Step 3: Cross multiply
691,964.96x = 954,908.88 × 374,012.96 - Step 4: Simplify right side
691,964.96x = 357,148,296,739.09 - Step 5: Solve for x
x = 357,148,296,739.09/691,964.96 - Step 6: Final answer
x = 516,136.39
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.