Finding the Fourth Proportional to 542,412.75, 748,479.18 and 300,674.84
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Solution
The fourth proportional to 542,412.75, 748,479.18 and 300,674.84 is: 414,903.33
Step by Step Solution
- Step 1: Write the proportion equation
542,412.75 : 748,479.18 = 300,674.84 : x - Step 2: Convert to fraction form
542,412.75/748,479.18 = 300,674.84/x - Step 3: Cross multiply
542,412.75x = 748,479.18 × 300,674.84 - Step 4: Simplify right side
542,412.75x = 225,048,855,074.97 - Step 5: Solve for x
x = 225,048,855,074.97/542,412.75 - Step 6: Final answer
x = 414,903.33
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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.