Finding the Fourth Proportional to 818,414.96, 1,129,021.48 and 635,877.68
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Solution
The fourth proportional to 818,414.96, 1,129,021.48 and 635,877.68 is: 877,207.28
Step by Step Solution
- Step 1: Write the proportion equation
818,414.96 : 1,129,021.48 = 635,877.68 : x - Step 2: Convert to fraction form
818,414.96/1,129,021.48 = 635,877.68/x - Step 3: Cross multiply
818,414.96x = 1,129,021.48 × 635,877.68 - Step 4: Simplify right side
818,414.96x = 717,919,559,372.57 - Step 5: Solve for x
x = 717,919,559,372.57/818,414.96 - Step 6: Final answer
x = 877,207.28
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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.