Finding the Fourth Proportional to 870,279.12, 1,305,433.08 and 239,189.04
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Solution
The fourth proportional to 870,279.12, 1,305,433.08 and 239,189.04 is: 358,787.52
Step by Step Solution
- Step 1: Write the proportion equation
870,279.12 : 1,305,433.08 = 239,189.04 : x - Step 2: Convert to fraction form
870,279.12/1,305,433.08 = 239,189.04/x - Step 3: Cross multiply
870,279.12x = 1,305,433.08 × 239,189.04 - Step 4: Simplify right side
870,279.12x = 312,245,285,189.44 - Step 5: Solve for x
x = 312,245,285,189.44/870,279.12 - Step 6: Final answer
x = 358,787.52
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1.5x scale
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.