Finding the Fourth Proportional to 908,979.68, 1,256,659.44 and 682,231.52
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Solution
The fourth proportional to 908,979.68, 1,256,659.44 and 682,231.52 is: 943,181.35
Step by Step Solution
- Step 1: Write the proportion equation
908,979.68 : 1,256,659.44 = 682,231.52 : x - Step 2: Convert to fraction form
908,979.68/1,256,659.44 = 682,231.52/x - Step 3: Cross multiply
908,979.68x = 1,256,659.44 × 682,231.52 - Step 4: Simplify right side
908,979.68x = 857,332,679,873.55 - Step 5: Solve for x
x = 857,332,679,873.55/908,979.68 - Step 6: Final answer
x = 943,181.35
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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.