Finding the Fourth Proportional to 756,837.12, 1,134,640.08 and 283,257.12
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Solution
The fourth proportional to 756,837.12, 1,134,640.08 and 283,257.12 is: 424,655.28
Step by Step Solution
- Step 1: Write the proportion equation
756,837.12 : 1,134,640.08 = 283,257.12 : x - Step 2: Convert to fraction form
756,837.12/1,134,640.08 = 283,257.12/x - Step 3: Cross multiply
756,837.12x = 1,134,640.08 × 283,257.12 - Step 4: Simplify right side
756,837.12x = 321,394,881,297.37 - Step 5: Solve for x
x = 321,394,881,297.37/756,837.12 - Step 6: Final answer
x = 424,655.28
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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.