Finding the Fourth Proportional to 804,743.80, 1,207,115.70 and 243,778.30
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Solution
The fourth proportional to 804,743.80, 1,207,115.70 and 243,778.30 is: 365,667.45
Step by Step Solution
- Step 1: Write the proportion equation
804,743.80 : 1,207,115.70 = 243,778.30 : x - Step 2: Convert to fraction form
804,743.80/1,207,115.70 = 243,778.30/x - Step 3: Cross multiply
804,743.80x = 1,207,115.70 × 243,778.30 - Step 4: Simplify right side
804,743.80x = 294,268,613,249.31 - Step 5: Solve for x
x = 294,268,613,249.31/804,743.80 - Step 6: Final answer
x = 365,667.45
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Similar ratio
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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.