Finding the Fourth Proportional to 815,815.68, 1,125,818.88 and 458,112
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Solution
The fourth proportional to 815,815.68, 1,125,818.88 and 458,112 is: 632,190.76
Step by Step Solution
- Step 1: Write the proportion equation
815,815.68 : 1,125,818.88 = 458,112 : x - Step 2: Convert to fraction form
815,815.68/1,125,818.88 = 458,112/x - Step 3: Cross multiply
815,815.68x = 1,125,818.88 × 458,112 - Step 4: Simplify right side
815,815.68x = 515,751,138,754.56 - Step 5: Solve for x
x = 515,751,138,754.56/815,815.68 - Step 6: Final answer
x = 632,190.76
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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.