Finding the Fourth Proportional to 691,979.68, 954,932.88 and 374,027.68
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Solution
The fourth proportional to 691,979.68, 954,932.88 and 374,027.68 is: 516,158.70
Step by Step Solution
- Step 1: Write the proportion equation
691,979.68 : 954,932.88 = 374,027.68 : x - Step 2: Convert to fraction form
691,979.68/954,932.88 = 374,027.68/x - Step 3: Cross multiply
691,979.68x = 954,932.88 × 374,027.68 - Step 4: Simplify right side
691,979.68x = 357,171,329,662.12 - Step 5: Solve for x
x = 357,171,329,662.12/691,979.68 - Step 6: Final answer
x = 516,158.70
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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.