Finding the Fourth Proportional to 615,519.11, 923,277.80 and 342,139.09
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Solution
The fourth proportional to 615,519.11, 923,277.80 and 342,139.09 is: 513,208.16
Step by Step Solution
- Step 1: Write the proportion equation
615,519.11 : 923,277.80 = 342,139.09 : x - Step 2: Convert to fraction form
615,519.11/923,277.80 = 342,139.09/x - Step 3: Cross multiply
615,519.11x = 923,277.80 × 342,139.09 - Step 4: Simplify right side
615,519.11x = 315,889,428,125.26 - Step 5: Solve for x
x = 315,889,428,125.26/615,519.11 - Step 6: Final answer
x = 513,208.16
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.