Finding the Fourth Proportional to 815,955.12, 1,125,993.96 and 453,369.96
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Solution
The fourth proportional to 815,955.12, 1,125,993.96 and 453,369.96 is: 625,637.15
Step by Step Solution
- Step 1: Write the proportion equation
815,955.12 : 1,125,993.96 = 453,369.96 : x - Step 2: Convert to fraction form
815,955.12/1,125,993.96 = 453,369.96/x - Step 3: Cross multiply
815,955.12x = 1,125,993.96 × 453,369.96 - Step 4: Simplify right side
815,955.12x = 510,491,836,605.44 - Step 5: Solve for x
x = 510,491,836,605.44/815,955.12 - Step 6: Final answer
x = 625,637.15
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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.