Finding the Fourth Proportional to 485,351.88, 669,786.12 and 270,487.08
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Solution
The fourth proportional to 485,351.88, 669,786.12 and 270,487.08 is: 373,272.46
Step by Step Solution
- Step 1: Write the proportion equation
485,351.88 : 669,786.12 = 270,487.08 : x - Step 2: Convert to fraction form
485,351.88/669,786.12 = 270,487.08/x - Step 3: Cross multiply
485,351.88x = 669,786.12 × 270,487.08 - Step 4: Simplify right side
485,351.88x = 181,168,491,823.33 - Step 5: Solve for x
x = 181,168,491,823.33/485,351.88 - Step 6: Final answer
x = 373,272.46
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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.