Finding the Fourth Proportional to 426,739.86, 588,899.79 and 245,486.70
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Solution
The fourth proportional to 426,739.86, 588,899.79 and 245,486.70 is: 338,770.95
Step by Step Solution
- Step 1: Write the proportion equation
426,739.86 : 588,899.79 = 245,486.70 : x - Step 2: Convert to fraction form
426,739.86/588,899.79 = 245,486.70/x - Step 3: Cross multiply
426,739.86x = 588,899.79 × 245,486.70 - Step 4: Simplify right side
426,739.86x = 144,567,066,077.79 - Step 5: Solve for x
x = 144,567,066,077.79/426,739.86 - Step 6: Final answer
x = 338,770.95
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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.