Finding the Fourth Proportional to 811,272.50, 1,119,512.09 and 448,675.19
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Solution
The fourth proportional to 811,272.50, 1,119,512.09 and 448,675.19 is: 619,147.45
Step by Step Solution
- Step 1: Write the proportion equation
811,272.50 : 1,119,512.09 = 448,675.19 : x - Step 2: Convert to fraction form
811,272.50/1,119,512.09 = 448,675.19/x - Step 3: Cross multiply
811,272.50x = 1,119,512.09 × 448,675.19 - Step 4: Simplify right side
811,272.50x = 502,297,299,688.05 - Step 5: Solve for x
x = 502,297,299,688.05/811,272.50 - Step 6: Final answer
x = 619,147.45
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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.