Finding the Fourth Proportional to 815,770.20, 1,125,742.68 and 453,195
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Solution
The fourth proportional to 815,770.20, 1,125,742.68 and 453,195 is: 625,397.88
Step by Step Solution
- Step 1: Write the proportion equation
815,770.20 : 1,125,742.68 = 453,195 : x - Step 2: Convert to fraction form
815,770.20/1,125,742.68 = 453,195/x - Step 3: Cross multiply
815,770.20x = 1,125,742.68 × 453,195 - Step 4: Simplify right side
815,770.20x = 510,180,953,862.60 - Step 5: Solve for x
x = 510,180,953,862.60/815,770.20 - Step 6: Final answer
x = 625,397.88
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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.