Finding the Fourth Proportional to 490,805.15, 677,306.97 and 275,946.08
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Solution
The fourth proportional to 490,805.15, 677,306.97 and 275,946.08 is: 380,803.26
Step by Step Solution
- Step 1: Write the proportion equation
490,805.15 : 677,306.97 = 275,946.08 : x - Step 2: Convert to fraction form
490,805.15/677,306.97 = 275,946.08/x - Step 3: Cross multiply
490,805.15x = 677,306.97 × 275,946.08 - Step 4: Simplify right side
490,805.15x = 186,900,199,941.64 - Step 5: Solve for x
x = 186,900,199,941.64/490,805.15 - Step 6: Final answer
x = 380,803.26
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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.