Finding the Fourth Proportional to 513,387.44, 708,190.26 and 298,503.74
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Solution
The fourth proportional to 513,387.44, 708,190.26 and 298,503.74 is: 411,769.80
Step by Step Solution
- Step 1: Write the proportion equation
513,387.44 : 708,190.26 = 298,503.74 : x - Step 2: Convert to fraction form
513,387.44/708,190.26 = 298,503.74/x - Step 3: Cross multiply
513,387.44x = 708,190.26 × 298,503.74 - Step 4: Simplify right side
513,387.44x = 211,397,441,241.57 - Step 5: Solve for x
x = 211,397,441,241.57/513,387.44 - Step 6: Final answer
x = 411,769.80
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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.